Firewall Security AI - No Root

In-app purchases
4.1
1.85K reviews
1L+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Take control of your Android’s internet access — app by app. Firewall Security AI - No Root is a no-root Android firewall (app firewall / internet blocker) with DNS privacy and on-device analysis. See which apps try to go online, review outbound connections in real time, and allow or block them in seconds — before your data leaves your phone.

Many apps (and some system services) connect silently in the background to analytics, ad networks, telemetry endpoints or unknown hosts. Firewall Security AI makes this transparent: every connection attempt is logged with the app name, host/domain, IP address, country and timestamp. If something looks suspicious, block it with one tap.

PER-APP INTERNET CONTROL
• Allow or block Wi‑Fi, mobile data and roaming per app
• Make specific apps fully offline when they don’t need network access
• Quick rules like “Wi‑Fi only”, “Mobile data only” or “Always block”
• Quick Settings tile to toggle the firewall instantly

DNS PRIVACY + CUSTOM DNS
DNS is often the entry point for tracking. Choose a secure DNS provider or set a custom DNS. DNS-based blocking can help reduce tracking, ads and phishing. Combine DNS + per‑app rules for stronger control — no rooting required.

SMART BLOCKING (OUTBOUND)
• AI Firewall & Deep Detective™ help you spot suspicious or unknown connection patterns
• IPS focuses on blocking known outbound threats using advanced filter lists (10M+ domains covering malicious, tracking and spy targets)
• Reduce unwanted destinations while keeping the apps you actually need

CONNECTION LOG & INSIGHTS
• Clear log: app, host/domain, IP, country, protocol and time
• Data counters to identify “chatty” apps and unexpected traffic
• Tags and quick filters so you can find what matters fast

WHY IT HELPS IN DAILY USE
• Control background data: set social/video/games to “Wi‑Fi only” to avoid surprises on mobile data packs
• Public Wi‑Fi: block new or unknown apps until you review their destinations
• Travel: keep roaming strict and allow only essential apps
• Quick privacy check: install an app, see where it connects, then decide

QUICK SETUP TIP
Start strict: block first, allow later — you can change rules anytime.

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. Android typically allows only one VPN at a time — switch if you use another VPN app.

ON-DEVICE FILTERING
Filtering happens locally on your phone via the official Android VPN interface. Your traffic is routed to the firewall for inspection and control on-device (not on a remote server).

PRIVACY BY DESIGN
No ads. No account required. Rules and logs stay on your device. Firewall Security AI focuses on visibility and control of outbound (device‑to‑internet) connections to help reduce unwanted data sharing. If an app stops working after blocking, simply allow it again or restrict it to “Wi‑Fi only”.

COMPATIBILITY
Android 14/15 compatible and optimised for modern devices. Uses the official Android VPN framework for local filtering — no root, no risky modifications.

ABOUT PROTECTSTAR
Firewall Security AI is developed by Protectstar™, an award-winning cybersecurity company trusted by users worldwide for privacy and mobile security.

GET STARTED IN 3 STEPS
1) Install and enable the personal firewall VPN
2) Set rules for your top apps (Allow / Block / Wi‑Fi only)
3) Choose your DNS and filter lists for your privacy level

NO OVERPROMISING
This is a personal firewall focused on outbound visibility and blocking. It does not claim to provide inbound network protection.
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
Did you find this helpful?
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
Did you find this helpful?
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
Did you find this helpful?

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!