No Root Firewall, Internet Data Blocker Protection
Tools In-app purchases
The most secure Personal Firewall in the world that fits in your pocket
- Rating
- 4.4
- 90 ratings
- Downloads
- 1K+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Dec 3
- 2020 · v1.0.3
Screenshots
About No Root Firewall, Internet Data Blocker Protection
Protectstar™ Firewall Android
★★★★★ Free protection against hacker attacks and espionage apps
★★★★★ Engine based on artificial intelligence (AI) with heuristic detection methods
★★★★★ Personal Firewall: Control incoming and outgoing traffic
★★★★★ Block Apps: To block unauthorized sending of personal data
★★★★★ Intelligence Services: Block unwanted access from intelligence services
★★★★★ Secure Filter Lists: Protection against known spy servers
★★★★★ Detect Malware: Find hidden malware with ease
★★★★★ Protectstar™ apps are preferred by more than 3,000,000 users in 123 countries
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.
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.
Fend off Cyberattacks with Artificial Intelligence
Protectstar™ Firewall Android is based on the 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 gaps.
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.
High-Secure Android Firewall: 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 intelligence 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.
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.
Guarantee
Protectstar™ Firewall does not collect any personal user data and is Ad-free, like all our apps.
Features FREE Edition
+ 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 AI engine
+ Firewall logging
+ Intrusion Prevention System
+ Firewall filter lists
+ Block background and system apps
+ Insights into network traffic
+ Live view of current data connections
+ No root required
+ Reduce battery consumption
+ Reduce consumption of mobile data
What’s new
Version 1.0.3 · Updated December 3, 2020
+ Sort apps last update + Technical improvements
User reviews
I just started using the app. I've been looking for an affordable firewall/VPN, and as luck would have it, Protectstar steps up to the plate. I've been using their Camera & Microphone guard apps for as long as they've been available. And based on the quality and functionality of those apps, this app was a natural ch...
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Frequently asked questions
What is Protectstar™ Firewall Android?
Protectstar™ Firewall Android is a free app that provides protection against hacker attacks and espionage apps. It uses artificial intelligence and heuristic detection methods to detect threats and control incoming and outgoing internet traffic.
How does Protectstar™ Firewall Android work?
Protectstar™ Firewall Android works by monitoring and controlling internet traffic on your Android device. It uses firewall technologies, secure filter lists, and artificial intelligence to protect your privacy and notify you when an app tries to send data to the internet. You can also block apps from accessing the internet.
Can Protectstar™ Firewall Android detect malware?
Yes, Protectstar™ Firewall Android has the ability to detect hidden malware. It uses artificial intelligence technologies like Deep Detective™ and Protectstar™ AI Cloud to identify and fend off modern hacker attacks, malware, and security gaps.
How can I block apps from accessing the internet with Protectstar™ Firewall Android?
With Protectstar™ Firewall Android, you can easily block apps from accessing the internet. Simply select the apps you want to block with just two clicks. This not only improves the performance of your device but also enhances your privacy and reduces battery usage.
Does Protectstar™ Firewall Android protect against intelligence services and government organizations?
Yes, Protectstar™ Firewall Android is specially developed to block unwanted access by known intelligence services and government organizations. It has an integrated Intrusion Prevention System (IPS) that automatically blocks known servers and IP addresses from organizations like the FBI, CIA, NSA, GCHQ, and more.
Is Protectstar™ Firewall Android secure and private?
Yes, Protectstar™ Firewall Android is highly secure and private. It does not collect any personal user data and is ad-free. Your privacy and security are prioritized.
Does Protectstar™ Firewall Android require root access?
No, Protectstar™ Firewall Android does not require root access. It can be used without rooting your Android device.
What are the features of the FREE Edition of Protectstar™ Firewall Android?
The FREE Edition of Protectstar™ Firewall Android includes features such as firewall protection based on Linux iptables, enhanced firewall protection against outgoing connections, custom firewall rules, firewall logging, intrusion prevention system, firewall filter lists, network traffic insights, live view of current data connections, and more.
Alternatives to No Root Firewall, Internet Data Blocker Protection
Looking for apps like No Root Firewall, Internet Data Blocker Protection? Here are 6 similar Android apps on Google Play. The highest rated is Privacy Defender - Security (4.9/5), and all 6 are free to download.
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NetGuard - no-root firewall 4.4
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Norton Secure VPN: Wi-Fi Proxy 4.4
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AVG Secure VPN Proxy & Privacy 4.4
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Kaspersky Security & VPN 4.7
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Private Internet Access VPN 4.5
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Privacy Defender - Security 4.9
| App | Rating | Price | Installs | Last updated |
|---|---|---|---|---|
| No Root Firewall, Internet Data Blocker Protection | 4.4 / 5 | Free | 1,000+ | Dec 3, 2020 |
| NetGuard - no-root firewall | 4.4 / 5 | Free | 10,000,000+ | Aug 17, 2026 |
| Norton Secure VPN: Wi-Fi Proxy | 4.4 / 5 | Free | 10,000,000+ | Sep 18, 2026 |
| AVG Secure VPN Proxy & Privacy | 4.4 / 5 | Free | 10,000,000+ | Mar 27, 2026 |
| Kaspersky Security & VPN | 4.7 / 5 | Free | 50,000,000+ | Jun 22, 2020 |
| Private Internet Access VPN | 4.5 / 5 | Free | 10,000,000+ | Sep 18, 2026 |
| Privacy Defender - Security | 4.9 / 5 | Free | 100,000+ | Aug 31, 2026 |
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