The vast majority of mobile applications for Android require permission for network connections during installation. Many of them really need it for full-fledged work, while others use it only to download ads or for other, not always useful, purposes. By default, the Android operating system does not contain tools that would help regulate the network activity of applications. However, this task can be solved using a third-party application called NoRoot Firewall.

The work of this utility exactly corresponds to its name and will not raise questions from anyone who has met with the configuration of any firewall in Windows. NoRoot Firewall notifies you when applications try to access the Internet and allows you to allow or deny the connection. Thus, you create a set of rules according to which the programs installed on your device will receive network access.

In addition to global rules, as you can see on the right screenshot, you can also set more subtle specific instructions for each program. So, it is possible to specify a list of addresses to which access is allowed or denied, and even a connection method for each connection. NoRoot Firewall also saves connection logs, so you can see at any time which application was transmitting / receiving data and from where. NoRoot Firewall works by creating a secure VPN connection and does not require superuser rights, unlike many of its competitors. It is distributed free of charge and is available for all devices running Android 4.0 and above.
Download NoRoot Firewall for Android you can follow the link below.

Developer: Gray Shirts
Platform: Android 4.0 and above
Interface language: Russian (RUS)
Condition: Free (Free)
Root: Not needed

Many programs for the Android OS require permission for network connections during installation. Some applications may use it to download advertisements, etc. By default, Android does not have built-in tools that can monitor the network activity of the software. Similar functionality is available in special applications - firewalls or firewalls. Finding a firewall is not difficult, since there are a lot of such programs.

What is a firewall?

A firewall on an Android phone is a security feature that can prevent certain programs from accessing the network. It notifies the user if any program has requested access to the Internet. In other words, a firewall protects the device and can also help save money by saving internet traffic).

Firewall Service - what is it?

This is a virus that spreads on Android devices. The principle of operation is as follows: when data transfer is turned on, the inscription “Firewall Service” appears on the gadget’s screen. It is not easy to close such a message, as it appears again. To clean the device from this virus, you need to remove the malicious application (you will need root rights).

If the device has root rights, then the X-Plore file manager should be installed. Next, you need to go to the Root-System-App directory and remove the Firewall Service, as well as the Security Service (if any). After that, you need to restart the gadget.

Firewall for Lenovo

There are many firewalls for Android devices. Two of the most popular applications that have wide functionality will be described below. You can install any of them by downloading the program from Google Play.

DroidWall

It should be noted right away that Root-rights are required for the functioning of this program. Also, the device must support the iPtables utility. DroidWall can control all applications that request access to the network. There are two modes of program operation:

• White list. Only applications included in this list will be able to connect to the network.
• Black list. Denies access to the network to programs in the list.

To change the operating mode, you must click on the inscription with the current operating mode located at the top of the screen.

The program is absolutely free, so you can download it and install it on your device.

NoRoot Firewall

The software can function even without root rights. It blocks applications from accessing the Internet and helps protect your device. If some software requests access to the network, a notification will appear and you can deny or allow the connection. The user can independently create rules for any application.

The utility works correctly on all devices with Android version 4.0 or higher.

Conclusions:

You definitely need to install a firewall on a Lenovo tablet or phone, since such programs are very useful. You can choose the right application after reading the reviews, ratings and download statistics on the Play Market.

Android security works a little differently than PC security. This means you don't need a firewall on your Android device, just like your PC. The power management features of an Android phone work in such a way that it is not always open to traffic. And that you are unlikely to be able to receive malicious messages from the Internet (or call the Internet).

However, more and more apps require an internet connection in the background. And there are many malicious apps that send your data about you. Data that you would prefer to keep private.

Android firewalls are great for getting more control over how your phones communicate with an internet access blocking internet app. IP address blocking, bandwidth control, etc.

Here are the top three Android firewall apps that you can use in 2019.

NetGuard

Functioning as a partial VPN, a firewall that partially controls applications, NetGuard. It's an affordable way to keep tight control over your phones' internet connection.

It has its own built-in VPN. It must be activated before you can decide which applications have access to the Internet and which do not. Or they simply block web access to applications.

It's very easy to use, with Wi-Fi and mobile data icons next to the apps. Allows you to instantly tap them to enable and disable the online connection through both connections.

You can do a few more things. Such as ad blocking and logging exactly when your phone connects to the internet in the background. This is especially handy for those who like to keep things simple.

NetStop Firewall

Even if NetGuard doesn't suit you, how about this: a giant red button that you press to block all applications on your device that are connected to the Internet.

Bigger switch to kill network activity than a firewall. And it is definitely effective.

AFWall + (Root required)

If you have rooted your phone, then one of the benefits is that you can really go deeper into control of everything on it. Including web traffic.

As with other firewall apps, AFWall+ has the usual list of apps. In it, you can see which applications are "calling" home. And act accordingly.

The good thing here is that it doesn't need to tunnel your connection through the VPN to get started. But if you are connected to a VPN, then it will continue to work just as well. The firewall is based on iptables. This means that it works at a deeper level of your Android OS to control internet traffic. It also means that you get the same level of control as you would with other firewalls. But you get the opportunity to maintain the maximum speed of the Internet.

In addition, as a confirmation of reliability, it is worth knowing that it is made by one of the developers on XDA. And has good followers from knowledgeable people.

Conclusion

It may not seem like there are too many options presented above. But rest assured they are the best you can get. Once popular firewalls such as LostNet Firewall and NoRoot Firewall have either disappeared or are out of service. These are your safest firewall bets in 2019!

In the age of high technology and the massive use of the Internet in mobile devices and computers, one of the priority and important problems is the reliable protection of electronic devices from hacking from the outside. To prevent unauthorized access to the file system and other hardware of computing devices, special software is used, which is called a firewall, or firewall.

Such software is capable of detecting malicious applications that attempt to transfer sensitive data without the user's consent. For mobile devices running the Android operating system, there are also firewalls.

Why use a firewall with Android OS

When surfing the Internet from a mobile device, the amount of traffic is less than when using a personal computer or laptop, but even with such restrictions, no user can be completely sure that malware will not infiltrate his electronic device. They can crash the operating system, damage other applications as well as the file system, and steal personal user data.

To prevent unpleasant consequences, it is necessary to install a firewall for Android devices of any other OS. Since the Android operating system is the most popular and used by a huge number of users, we will consider using a firewall specifically for these devices.

Benefits of using a firewall

A firewall, or firewall, for android is a software that allows you to protect an electronic computing device from external network attacks. Firewall for android in the process of its work is constantly in RAM and monitors the transmitted traffic. In the event of suspicious processes trying to make unauthorized data transfer, the firewall for android blocks them. At the moment, many different applications have been released that can have a complex combination of protective functionality.

By installing a firewall on a mobile device, the user gets the following benefits:

• blocks potentially dangerous processes and data packets;
• optimally and reliably protects your personal data;
• protects the device from being hacked from the outside.

While an antivirus application monitors malicious code only on the electronic device itself, the firewall allows you to detect processes that transfer data from or to the network without notifying the user. The simultaneous use of antivirus software with a firewall for android allows you to more reliably protect your mobile device.

Installation methods

It is difficult for an inexperienced user to monitor the security of their gadget, but if desired, it is not so difficult. Especially for such cases, developers have released a lot of various software. Some of these applications are paid, but there are many free ones. Unfortunately, you can work with some of these programs if you have root rights, which indicates that this is not safe.

It often happens that the capabilities of the operating system itself are very limited, so you will need to install purely special applications. You can find the desired application on the Internet or in another convenient way.

There are times when installing a firewall for an android can be difficult. Then there are the following two options:

• installing a firewall on a mobile phone with root rights;
• installation of applications that do not need a high level of access.

Firewall to work without root rights

Depending on the hardware of the mobile device and operating system, getting root rights can be difficult. What to do in such a situation? You should use a firewall that does not require root rights - NoRoot Firewall.

This software is slightly more limited in functionality than similar software that has a higher priority access level. However, it still has the necessary arsenal of features and settings that help protect your mobile device.

The program has the ability to create lists of IP addresses to which it is necessary to block data transfer, as well as the usual necessary thing for such programs, such as notification of processes trying to transfer data that the user is not aware of. This is very convenient, since the transfer processes are not controlled by programs written by someone, but by the user himself.

As for the general settings, if you are not particularly versed in such software, you do not need to change anything at the beginning of the launch. When you first start the program, press the "Start" key, and also check the checkbox for the startup item. After that, we allow access to the VPN connection and its settings, and that's it. Now you can use all available features. The program takes into account the types of connection, namely the Wi-Fi protocol and GSM.

You can find many other similar applications on the Internet, but before downloading and installing a firewall for android, it does not hurt to read the technical documentation and make sure that you need to have root rights.

How to prevent Android mobile phone/smartphone from being tracked?

Recently, a lovely girl wrote to us in the Vkontakte group. She politely introduced herself and asked us to help her. The problem was this. The girl found out that her ex was following her. Of course, she knows little about computers and the word "" inspires the same fear and misunderstanding on her as the terrible word "Scrub" on me.

• background
• Briefly what is a firewall
• Installing the Firewall App Without Root
• Setting up the Firewall application without Root
• Using the Firewall App Without Root

I helped her with the computer remotely through TeamViewer, the old version was installed on the computer. But it turned out that she was also being followed with the help of her phone. The most interesting thing is that the Anti-Virus for Android installed on it did not find anything suspicious. Then I decided to do otherwise, not to search remotely for a needle in a stack, but to install a firewall / firewall for it and cut everything suspicious that tried to knock on the network.

Z Protecting an Android phone remotely is a difficult task. Rooting the phone was quite problematic, and not safe when it comes to ordinary users, we have already talked about the consequences of Root in terms of security in the article "".

Therefore, my choice fell on a free firewall that does not require root rights to work. By the way, a couple of years ago there was no firewall for Android that would not require root-rights.

Firewall for Android without Root

A few words about the terms that are used in this article. Human language about what Firewall / Firewall is. A firewall is a program that allows you to filter all outgoing and incoming traffic. And traffic is data that passes through networks from a computer or smartphone to a website, or between them.

Firewall without Root: Installation

First, let's download the app. You can download Firewall without Root for free via a direct link from Google Play.

Click on the "Install" button.

Download Firewall without Root

One can not but rejoice at the fact that the application does not require special permissions, and these friends are a very good omen.

Click on the "Accept" button.

Download Firewall without Root

After the application has downloaded and installed, click on the "Open" button

Installing Firewall without Root

The application is installed. You can launch the application by clicking on the "Open" button, but it's better to close all windows and reboot the device.

Firewall without Root: Setting

After the reboot, we will see this window. In which we are offered to launch the application. Before starting, I recommend checking the box "Automatically enable ..."

Launching the Firewall application without Root

After starting, a system warning window will appear. We read and boldly click on "OK". Later I will explain what this means.

VPN connection request

Second after tab " Home”, in which we launched the application, there is a tab “ Pending Access". On this tab, you can see all the applications that are trying to connect somewhere from your device. Why somewhere? Because each application connects and sends information to different servers.

Every time some new or installed application for which there is no previously created rule in our application will try to send information or try to connect to remote servers, you will see a notification on this tab.

Pending Access

Now it's up to you whether, for example, the Chrome browser will work or not. What you consider trusted - allow, what is not - forbid. Everything that should not, in your opinion, have access to the Internet should be turned off. For example, you do not use the camera, then feel free to turn it off. Or, for example, an album of photos, a music player, all these applications have nothing to look for on the Internet, so feel free to forbid.

For example, recently I needed to record a telephone conversation. As you know, there is no pre-installed application in Android, I had to search in Google Market. I installed a voice recorder, but from the very first minute it started trying to send something somewhere. Turning on the logic, I decided that he had nothing to do on the Internet, this is a local application, this is not Skype or Viber, and he only needs to record a mobile communication conversation, and eventually turned it off. At the moment, the application works fine without access to the network. And there will be a need to update it, I will do it through Google Play, which, by the way, I allow access only if it is necessary to update installed applications.

On the tab " Programs”, you can see all installed applications and rules for them. There are two empty fields (squares) next to each application.

• The first is access to the network via WiFi.
• The second box is access using the mobile network.

Programs

By clicking on each of them, the user can set the settings. Enable or disable network access. You can block this or that application selectively. To save traffic, you can, for example, block YouTube or another gluttonous application by marking the ban only for the Wi-Fi field. This can be a very useful feature in terms of traffic savings.

Tab « Global Rules"Offers to manually block a particular resource by IP or by name. This may be some site or some left Chinese server, which Chinese non-name smartphones and tablets so often knock on (leak information).

Global Rules

Well, the last tab " The event log". Here you can see everything that is currently happening on the network. All applications that interact with the network in real time. Looking here, you will be surprised when you see that your phone is constantly sending something somewhere.

The event log

In green, the program marks all allowed applications, and in red, blocked ones. It also provides information about the remote IP and the exact time of the event.

Firewall without Root: Usage

My friends, the Firewall without Root described in this article is an application that must be installed on your Android device, smartphone and tablet without fail. Also s android phone protection can be enhanced by another similar application like DroidWall, but it requires Root.

From now on, it's up to you to decide what's on your phone, where and when it connects, what it merges and what it downloads. The method described in the article does not give a 100% guarantee, but it greatly improves the protection of the phone.

That's all. I would like to take this opportunity to thank everyone who likes our articles on social networks. Without your likes, it is difficult for us to understand what you like and what we should write about in our subsequent publications. Thanks again!

App rating Firewall without Root

Our assessment

Rootless Firewall is a good smartphone protection program that, if properly configured, can protect against surveillance.

User rating: 4.29 (130 ratings)

October 6, 2016 by

These days a lot of hacking groups are active and our personal data is at stake. Thankfully, Android comes with some of the best security features there are. If that is not enough, you can easily download and install one of the best firewall apps for Android to keep your device safe from external, malicious interference. The best firewall apps for Android are not as robust as the ones found for PCs, but they do their jobs well.

I would like to point out that a firewall is not an antivirus. Sure, it can indirectly safeguard your smartphone or tablet from getting a virus but it is technically not an antivirus. Think of the firewall apps as an actual wall of fire made around your phone, it will burn anything harmful coming your way. The are more like the police, though, they find and arrest nefarious bugs.

Note: The 5 Best Firewall apps for Android were tested on a Samsung Galaxy S7 Edge smartphone. The apps worked fine and didn't drain almost any system resources. If you have root access to your device, some of the apps will work a lot better.

	#1 NetGuard	#2 NoRoot Data Firewall	#3 Mobiwol: NoRoot Firewall	#4 AFWall+ (Android Firewall+)	#5 DroidWall - Android Firewall
Google Downloads
Google Rating
Overall Ratings
Features
Help and Support			---		---
Features
User friendly interface
Amazing Feature Set
Background Data Blocking
Individual App Data Monitoring
Frequently Updated
Help and Support
Introduction Video
Active Developer

*Only in paid version. ** Only available in Trial version. *** Only available via in-app purchase.

1. NetGuard

   NetGuard is a simple, yet effective way to block Internet access on your device. The best part is, you don't even need access to block off malicious websites from the device. Addresses and even applications can be individually configured for access on the Android device.

   There were a lot of features available that allow you to customize the experience you have with this firewall app for Android. For example, you can easily block when roaming.

   You can also block system applications from accessing the Internet, this allows them to stay as it is and won't receive any updates. I really liked the feature which allows you to record network usage per application so that you can track the ones using all your mobile data.

2. NoRoot Data Firewall

   Just as the name implies, NoRoot Data Firewall is a great way to control how your device uses the Internet. The app allows you to easily manage all the apps and how they use your Internet. Even if you're using mobile data or Wi-Fi, it will be quite easy to regulate the Internet usage of your device.

   One great thing about this app is its ability to block background data usage and only let foreground data run freely. You’ll be able to analyze, record and start the data usage for each app and truly gain useful details about them. You can also set temporary permissions for one hour as well; this comes in handy when someone else is going to use your Android device.

3. Mobiwol: NoRoot Firewall

   Mobiwol firewall app can be used to not only reduce data usage but also save battery life in addition to securing your privacy. You'll be able to directly take control of the apps installed on your Android device with this app. With this app on your side, you can easily allow or block app connectivity.

   If one of the apps has gone rogue and used a lot of background data, you can simply restrict its usage. You can also get alerts when a new app tries to access the internet. The app may not be as effective as dedicated , but it works well in combination with them.

4. AFWall+ (Android Firewall+)

   If you have a rooted Android device and want to get one of the best firewall apps for Android, AFWall+ is the best one you can get. The app has a very pleasant interface and works great on almost any device. The app is a front end application and comes with powerful iptables Linux firewall.

   As it requires root access, the app is able to provide you with more options than the apps listed above. For example, you will be able to hide lock screen notifications with ease here. The app works faster and is a lot more reliable than the rest, a solid benefit for the rooted devices.

5. DroidWall - Android Firewall

   DroidWall is perhaps the oldest and most popular Android firewall app available on the Google Play Store. The interface is barebones and resembles the old school Gingerbread interfaces, but that doesn't mean the app is out of commission. It is still one of the best firewalls for Android in the market.

   This app also requires root access, so naturally, it comes with a slew of advanced features. I only recommend this app to advanced users who know what they are doing. The app allows you to manually define custom iptables rules giving you a lot of power over your device. The app is almost the same as the one above in terms of features, though.

Conclusion

This ends the best firewall apps for Android list. I hope you found an app that suits your needs on the list.

Comments (2)

Will Harrison Jr. on

Billa, Kinda new to this Android OS on my new RCA 11 Maven Pro Tablet w/detachable keyboard. How familiar are you with majicJack and their “app?” for use on an android os? Also, i am told that the Tablet is merely a larger version of an i-phone, like Samsung, etc. I have had neither and now I have this tablet. What about anti-v, firewall, etc. for it? And of course, the manual has almost nothing to say about these matters. Can I use it to make and receive phone calls, texting, skype, etc. How easy are these to “hack” into and/or peep and intrude? Just let me know but please, not too technical of terminology. thanks. Will Harrison Jr.

Hey Will! Welcome to Android! Our writers typically just focus on creating content, but I'm Megan, editor here at Joy of Android, and I'm happy to help you out. You obviously have a lot of questions, which is great because it will help you learn faster. Instead of answering your questions individually, I'm going to link you to some Joy of Android posts that will provide you with far more information than I could in a single comment and will probably provide you with information about things you didn't even know about in the first place!

First things first, here are a couple posts with more general information for Android beginners:

Now let's look at some of your specific questions.

I personally used Magic Jack for the first time several years ago as a way to make calls online when I didn't have a smart phone and I was in a country where Skype is blocked. I also know people who use Magic Jack as their exclusive phone provider, and others who use it for an inexpensive second or temporary phone line. All I've heard is glowing reviews. As for their Android app, you can find some information about Magic Jack, as well as some similar services, through this guide: .

It is more or less accurate to say that a tablet is more or less a larger version of a smart phone. Online calling and messaging apps allow for use of these services as long as you have an internet connection. That will need to be through a wifi connection unless you have a data plan for your tablet. If you don't have a data plan for your tablet and want one, your cell service provider should be able to help you set one up. The apps in the link on international calling above should all work for online calling, and here’s a guide to apps that you can use for messaging: . And yes, you can absolutely use Skype, too!

Last, let's talk about security. Since you’ve commented on our post about firewall apps, it seems pretty safe to assume that this is a pretty big concern for you, and it should be! It's important to take your security seriously, but it's also not too difficult. The most important thing to know is that your data is much more likely to be compromised because someone gets their hands on your device, not because someone hacks it, so be sure to never leave your tablet unattended where someone else could access it, and be sure to use a secure lock screen just in case.

Hacking is more commonly a problem when someone who has your sensitive information, like your insurance company, bank, or credit card company, has a breach in security, which there's not really anything you can do to prevent, but it can also be a problem if you accidentally download something unsafe onto your phone. Fortunately, there's plenty you can do to prevent this. It sounds like you’re going to be a pretty casual Android user, so there’s probably no reason for you to download apps from anywhere but the Google Play Store. Google takes a lot of care to keep dangerous downloads out of the Play Store, while third party app stores can be full of dangerous malware disguised as apps. Just in case, you'll also want to have at least an anti-virus app, though a firewall app, like any of the ones listed above, is also helpful. Here's a round up of some of the leading anti-virus apps: . We also have individual reviews on a lot of the anti-virus apps, so be sure to use our search bar to find other posts about any that you’re interested in. You may also want to take a look at these anti-malware apps: . Finally, always be careful when you download anything onto your mobile device. This guide can help you download safely: and this device can keep you safe while opening downloads, just in case something bad slipped through: .

Now, I know that was a lot of information, so please feel free to ask if you need some more explanation, or if you just think of more questions! Thanks for using Joy of Android as your source for Android related information and, once again, welcome to Android!

We continue our look at firewalls (or, if you prefer, firewalls) for Android. In the last article, we talked about the Gray Shirts studio program, as well as its direct competitor, Mobiwol. It was the last application that became the leader according to the results of direct comparison. The new material will find out if there is a worthy replacement for them.

First, let's introduce the test subjects. The first to come to our judgment is AFWall +, a firewall that requires root access and offers (presumably) more than others. It is distinguished from its competitors by the ability to control local network traffic, import DroidWall rules, support for the task scheduler, and much more. It is clear that such a solution is designed for experienced and tricky users.

And I will finish the review of LostNet, which, among other things, offers a paid Pro version. But do we have to pay extra and what benefits do we get? Perhaps you should not fence the garden if there is a universal Mobiwol? This will become clear from the results of the review.

The test equipment was:

• Tablet DEXP Ursus 8EV2 3G (Android 4.4.2, MT8382 processor, 4 x Cortex-A7 1.3 GHz, Mali-400 MP2 video core, 1 GB RAM, 4000 mAh battery, 3G module, Wi-Fi 802.11b/g/n );
• Smartphone Homtom HT3 Pro (Android 5.1 Lollipop, MT6735P processor, 4 x Cortex-A53 1.0 GHz, 64-bit, Mali-T720 video core, 2 GB RAM, 3000 mAh battery, 4G module, Wi-Fi 802.11b/g/ n).

AFWall+

Acquaintance

I am glad that the application is not abandoned, as happened with the "Firewall", and is constantly evolving, acquiring new features. Recall that it requires root, and this is not surprising if you evaluate the list of options below. Thanks to this, a real firewall can be organized on a mobile device.

There is also a hint of use in the corporate segment, which will be interesting for superiors and not at all acceptable for subordinates (for example, you can’t sit on social networks). It remains only to explore the capabilities of the firewall.

Main functions:

• Import / export rules to an external drive with a user interface;
• Import DroidWall rules;
• Search / filter / sort applications;
• Profile management using the user interface;
• Tasker/Locale support;
• Roaming options for 2G/3G/4G;
• VPN and LAN support;
• Internet distribution support;
• Support for IPv6 and IPv4;
• Device administrator support;
• Ability to select iptables/busybox binary;
• Support for x86/MIPS/ARM devices;
• Widget.

Permissions:

Photo/Multimedia/Files:

• Viewing data on a USB drive;
• Change/delete data on the USB storage device.

Wi-Fi connection details:

• View Wi-Fi connections.

• View network connections;
• Unlimited access to the Internet;
• Launch when the device is turned on.

First impression

I note right away that the AFWall + interface is English, but this can be fixed in the settings by selecting our great and mighty one in the corresponding menu item. Where this case is located, I will say further, but for now let's consider the layout of the elements.

There is no sidebar on the left - all controls are hidden under the "three dots" in the upper right part of the screen. You can activate the firewall, save rules, view event logs, and export or import rules, which is important if you "lost" the application.

It is worth noting the ability to register custom scripts that will take effect when the firewall is disabled. Naturally, this requires direct hands. By the way, to help them, the developer helpfully provided a link with examples of these, however, in English. In addition, you can separately view the iptables rules, but from the program itself.

The pop-up menu contains settings. At the very bottom of the menu, you can change the language to the desired one, as well as disable Tasker plugin pop-up messages and block downloads using the built-in Android manager.

Let me remind you that Tasker allows root users to turn the system upside down, but I will not delve into its capabilities, since we have already talked about this.

The good news is that the firewall interface is customizable to your heart's content. For example, to unload it, you can hide application icons or show all filters, that is, in addition to networks, "core", "user" and others.

It is possible to choose a color for all system applications (probably from the entire color gamut) and turn off notifications so as not to litter the status bar - with a certain number of locks, they will get out quite often.

In addition, rules can be configured. You can separately manage roaming permissions, as well as activate VPN permission management, that is, they can be fully controlled.

It is possible to block all IPv6 connections or, conversely, allow the latter. Here it is, the advantage of root rights, however, if you do not understand what is at stake, it is better not to touch anything in the settings.

Separately, it is worth noting the ability to password-protect (PIN-code or pattern) AFWall + and assign the application as a device administrator, which means that these advantages can be used at least for parental control. By the way, there is invisibility for the "pattern" and the maximum number of attempts to enter a password.

A security check is activated separately, but this is already a privilege of the paid version, which, depending on the version and capabilities, will cost from 85 to 119 rubles (prices are current at the time of writing). In my opinion, the free edition is enough.

Of the interesting, it is worth noting the ability to set up an unlimited number of profiles, for example, for home or work, which is very convenient, and then freely switch between them. It is a pity that there is no change in time, but this is already nit-picking.

There are also binary settings, but I will not talk about them in detail. Those who need it will figure it out without me, and those who do not understand what it is about do not need to touch this.

That's all in general terms. It remains to test the application in action.

Android devices and most applications for them are focused on using the Internet. On the one hand, this provides extensive opportunities, on the other hand, vulnerabilities ranging from traffic leaks to virus infection. To protect against the second, you should choose an antivirus, and firewall applications will help solve the first problem.

An advanced firewall that does not require not only root rights to work, but also additional permissions such as access to the file system or rights to make calls. The developers achieved this through the use of a VPN connection.

Your traffic is pre-processed by the application's servers, and if there is suspicious activity or overuse, you will be notified about it. In addition, you can block access to the Internet for individual applications or for individual IP addresses (thanks to the latter option, the application can also replace an ad blocker), and separately for a Wi-Fi connection and for mobile Internet. The creation of global parameters is also supported. The application is completely free, without ads and in Russian. No obvious flaws (apart from a potentially insecure VPN connection) were found.

AFWall+

One of the most advanced firewalls for Android. The application allows you to fine-tune the built-in Linux utility iptables, adjusting selective or global blocking of Internet access to fit your user case.

The features of the program are highlighting system applications in the list (to avoid problems, system components should not be denied access to the Internet), importing settings from other devices, and maintaining a detailed statistics log. In addition, this firewall can be protected from unwanted access or removal: the first is done using a password or pin code, and the second is by adding an application to the device administrators. Of course, there is a choice of blocked connection. The disadvantage is that some of the features are available only for users with root rights, as well as for those who have bought the full version.

NetGuard

Another firewall that does not need Root to function properly. It is also based on filtering traffic through a VPN connection. It features a clear interface and tracking protection capabilities.

Of the available options, you should pay attention to support for multi-user mode, fine-tuning the blocking of individual applications or addresses, and work with both IPv4 and IPv6. We also note the presence of a log of connection requests and traffic consumption. An interesting feature is the Internet speed graph displayed in the status bar. Unfortunately, this and several other features are only available in the paid version. In addition, the free version of NetGuard has ads.

Mobiwol: Firewall without root

A firewall that differs from its competitors in a friendlier interface and rich features. The main feature of the program is a false VPN connection: according to the assurances of the developers, this is bypassing the restrictions on working with traffic without using root rights.

Thanks to this loophole, Mobivol implements full control over the connection of each application installed on the device: you can limit both Wi-Fi communication and mobile data usage, set up a white list, enable a detailed event log and the amount of Internet megabytes spent by applications. Among the additional features, we note the selection of system programs in the list, the display of software running in the background, as well as viewing the port through which this or that software communicates with the network. All functionality is available for free, but there is advertising and there is no Russian language.

NoRoot Data Firewall

Another representative of firewalls that can work without root rights. Just like other representatives of this type of application, it works thanks to a VPN. The application can analyze the traffic consumption of programs and issue a detailed report.

It is also able to display the history of consumption for an hour, day or week. The functions familiar from the above applications, of course, are also there. Of the chips that are typical only for NoRoot Data Firewall, we note advanced connection settings: temporary restriction of access to the Internet for applications, setting permissions for domains, filtering domains and IP addresses, setting your own DNS, as well as a simple packet sniffer. All functions are available for free, there are no ads, but someone may be wary of the need to use a VPN. At the moment, the application has been removed from due to blocking access to the Internet, even Google services, but downloading and installation are still available from third-party sources.

Kronos Firewall

The decision of the level "installed, turned on, forgot". Perhaps this application can be called the simplest firewall of all those mentioned above - minimalism in both design and settings.

A gentleman's set of options includes a general firewall, inclusion / exclusion of individual applications from the list of blocked ones, viewing statistics on the use of the Internet by programs, sorting settings and an event log. Of course, the performance of the application is ensured through a VPN connection. All functionality is available for free and without ads.

To summarize - for users who care about the security of their data, there is an opportunity to additionally protect their devices using a firewall. The choice of applications for this purpose is quite large - in addition to dedicated firewalls, some antiviruses also have this function (for example, the mobile version from ESET or Kaspersky Labs).