Firewall Android

The most secure firewall in the world
that fits in your pocket.

Protection against espionage

The Protectstar™ Firewall Android offers you complete protection against hackers and espionage. Block attacks from the internet and protect yourself from unwanted access to the internet. Determine which apps can and cannot access the internet.

With powerful firewall technologies, secure filter lists, and artificial intelligence, you comprehensively protect your privacy and are also informed about what is being shared with the world.

  • Firewall

    Control incoming and outgoing traffic

  • Block Apps

    To block unauthorized sending of data

  • Artificial Intelligence

    Suspicious activity will be blocked

  • Intelligence Services

    Block unwanted access from these services

  • Secure Filter Lists

    Protection against known spy servers

  • Detect Malware

    Find hidden malware with ease

Protection and Control

It is a powerful firewall app for Android with an intuitive user interface. The firewall is not only ready to use in a few seconds, but it also protects you from hacker attacks and notifies you when an app tries to send data to the internet.

You can see in real-time which apps are accessing which servers or wasting mobile data. With simple filter rules, you can even allow or deny individual connections to an app.

Protection and Control
Fend off Cyberattacks with Artificial Intelligence

Fend off Cyberattacks with Artificial Intelligence

Protectstar™ Firewall is based on the tried and tested Linux firewall iptables to protect you from cyber-attacks. To even surpass the security, we have combined the firewall with artificial intelligence.

Based on the artificial intelligence technologies such as Deep Detective™ and Protectstar™ AI Cloud, the Android Firewall fends off modern hacker attacks, malware, and even security bugs.

This automatically blocks malicious traffic and suspicious activity. If malware has crept in unnoticed, artificial intelligence will help you to identify it immediately. It also prevents potential gaps in the apps that accept the connections from being exploited.

Easily Block Apps

Did you ever wonder why many apps that don't require internet access still need internet permissions?
Usually, advertisements are placed, or your sensitive data is sent to servers in China, Russia, or the USA without permission.

With the Protectstar™ Firewall, you monitor and block this data traffic. With two clicks, you select the apps that should be blocked.
You can completely prevent online access to an app. This also improves the performance of your device and relieves the battery usage.

Easily Block Apps
High-Secure Firewall for Android: Protection also from the FBI, CIA, NSA & Co.

High-Secure Firewall for Android:
Protection also from the FBI, CIA, NSA & Co.

Wouldn't it be great if a firewall could do much more than protect against hacker attacks! The Protectstar™ Firewall Android was specially developed to block unwanted access by known secret services and government organizations.

With our integrated Intrusion Prevention System (IPS), all known servers and IP addresses from the FBI, CIA, NSA, GCHQ, and many more are automatically blocked. If there is an attempt to access an incoming or outgoing connection, you will receive a warning.

Besides, you are protected from known spy servers in countries such as China, Iran, and Russia, as well as from spyware and mobile trackers. The anti-ransomware protection rounds off the security against modern ransomware.

Video presentation

Guarantee from Protectstar™

Firewall does not collect any personal data of the user on any medium. The app is also ad-free. Like all our apps!

Guarantee from Protectstar™


Free version

  • All traffic is controlled by the firewall Firewall protection based on Linux iptables
  • Enhanced firewall protection against outgoing connections
  • Create custom firewall rules
  • All network connections routed through the own firewall VPN access point
  • Control over all installed apps
  • Automatic updates of the artificial intelligence engine
  • Firewall logging
  • Intrusion Prevention System (IPS) Standard
  • Artificial Intelligence Engine Standard
  • Firewall filter lists Standard
  • Block background and system apps
  • Insights into network traffic through apps that access the internet
  • Live view of current data connections
  • Password protection
  • Supports the protocols IPv4, IPv6 TCP / UDP
  • No root required
  • Reduce battery consumption
  • Reduce consumption of mobile data

PRO version

  • All functions of the FREE Edition
  • Protection from FBI, CIA, NSA & other worldwide intelligence services
  • Protection against known spy servers in China, Iran, Russia, and many more
  • Protection against spyware and mobile trackers
  • Detects the Pegasus spyware by NSO Group
  • Anti-ransomware protection
  • Real-time updates from the artificial intelligence engine
  • Extended firewall logging
  • Intrusion Prevention System (IPS) PRO
  • Artificial Intelligence Engine PRO
  • Firewall filter lists PRO
  • Automatic updates of the intelligent block lists

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