Firewall Security AI - No Root

In-app purchases
4.1
1.85K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Take control of your Android’s connections. Firewall Security AI - No Root is a no-root Android firewall (app firewall / internet blocker) with DNS privacy and on-device AI security analysis. See which apps try to go online, block trackers and spy servers, and stop unwanted outbound connections in real time—before your data leaves your phone.

Many apps and system services quietly connect in the background to analytics, ad networks or unknown hosts. Firewall Security AI makes this transparent: every connection attempt is logged with the app, host/domain, IP address, country and timestamp. If something looks wrong, block it with a single tap.

PER-APP INTERNET CONTROL
• Allow or block internet per app (Wi-Fi / mobile data / roaming).
• Make specific apps fully offline when they don’t need network access.
• Quick rules: "Wi-Fi only", "always block", or "allow only what you trust".
• Quick Settings tile: turn the firewall on/off in one tap.

DNS PRIVACY (DNS) & CUSTOM DNS
DNS is often the entry point for tracking and unwanted requests. Choose a secure DNS provider or set a custom DNS. DNS-based blocking can reduce tracking, ads and phishing. Combine DNS + per-app rules for stronger control—without rooting.

KEY FEATURES
Connection log: app, host/domain, IP, country, protocol and timestamp.
Data counters: see which apps use the most network traffic and when.
AI Firewall & Deep Detective™: on-device analysis to help flag suspicious or unknown connection patterns.
IPS (outbound): the Intrusion Prevention System focuses on blocking known outbound threats using filter lists with 10M+ domains (malicious, tracking and spyware targets), stopping connections before they leave your device.
Ad-free, no account: no ads and no forced sign-up; rules and logs stay on your device.
Android 15 compatible and optimised for modern devices.

REAL-WORLD USE CASES
• Public Wi-Fi: block new or unknown apps until you review their destinations.
• Travel: keep roaming strict and allow only essential apps.
• Social apps: reduce background tracking without uninstalling.
• Games/streaming: set "Wi-Fi only" to avoid surprises.
• Quick privacy check: install an app, see where it connects, then decide.

ANDROID VPN SERVICE
This anti spy firewall app uses the Android VPN Service to route traffic to itself so that it can be filtered on-device instead of on a server.
Important: this is not a location-changing VPN. Android VPN is used as a technical interface for local traffic filtering. On Android, typically only one VPN can be active at a time—switch if you use another VPN.

PRIVACY BY DESIGN
Firewall Security AI is built for visibility and control of outbound (device-to-internet) traffic. If an app stops working after blocking, simply allow it again or restrict it to "Wi-Fi only". A good starting strategy is "block first, allow later" to build a trusted list.

ABOUT PROTECTSTAR
Firewall Security AI is developed by Protectstar™, an award-winning cybersecurity company trusted by millions of users worldwide.

GET STARTED IN 3 STEPS
1) Install the app and enable the personal firewall VPN.
2) Set rules for your most-used apps.
3) Adjust DNS and filter lists for your privacy level.

TRANSPARENCY THAT’S EASY TO UNDERSTAND
You don’t need to be a network expert. Use tags and quick filters to see what’s allowed or blocked, then open the log to review destinations. If you see an unfamiliar host or country, block it and keep using your phone—adjust any rule in seconds.

QUICK SETUP TIP
• Block apps you rarely use.
• Keep essential apps allowed, but review the log once.
• Use DNS + per-app rules to cut tracking while keeping apps usable.

Keywords: Android firewall, no-root firewall, app firewall, internet blocker, DNS, anti-spy, tracker blocker.
Updated on
22 Jan 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App info and performance and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
1.73K reviews
Aniket Pawar
23 January 2026
I think this is not an AI-powered firewall app; it's just a basic firewall features app. I know many filters are locked behind a paywall, but if you check out NetGuard Firewall, it has so many features unlocked, including some important ones. For example, if I install ProtectStar Firewall and accidentally visit a malicious website, and a hidden app is installed through that site, there is no automatic blocking protection in ProtectStar Firewall.
51 people found this review helpful
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M P
23 January 2026
It is working great I love it especially with the smart home app from Att I can eliminate the IP addresses that have been using our home Internet, running our data out in two weeks leaving us with nothing, considering that we only had one TV hooked up the entire time!!! And we just got upgraded to the high speed Internet also which is a bummer 😞 I unfortunately have a good hacker that keeps adjusting the settings on my phone and apps like no other.
11 people found this review helpful
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ROYAL CLEANING SOLUTIONS
19 February 2026
Great app, been using it along time but only once in a while I have difficulty with getting it to connect to my phone because it seems, even though I have connections on automatic, when I put on dns, it says can't connect to dns service a lot of times and idk why? can you help?
2 people found this review helpful
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What's new

+ Adjusted filter list resource management
+ Various adjustments and bug fixes

Thank you for using the Firewall AI and for being part of the Protectstar community!