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.