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 visible: every connection attempt is logged with the app, host/domain, IP address and country, so you can allow or block with a single tap. Create separate rules for Wi-Fi, mobile data and roaming—simple and fast.
WHY CHOOSE THIS NO-ROOT FIREWALL
• No root required: install, enable the personal firewall VPN, and start protecting in seconds
• On-device filtering: traffic is routed through a local VPN interface on your phone, not through remote VPN servers
• Ad-free and privacy-first: no ads, no forced accounts; rules and logs stay on your device
• Android 15 compatible and optimised for modern devices
KEY FEATURES
• Per-app internet control: allow/block Wi-Fi, mobile data and roaming per app—or make an app fully offline
• DNS privacy + DNS provider settings: choose a secure DNS or set a custom DNS; reduce tracking, ads and phishing with DNS-based blocking
• AI Firewall & Deep Detective™: real-time network behaviour analysis to help flag suspicious or unknown connections, trojans and spyware signals
• Intrusion Prevention System (IPS): focused on blocking known outbound threats using filter lists with 10M+ domains (malicious, tracking and spy targets) before connections leave your device
• Connection log & data counters: app, host/domain, IP, country, timestamp and usage in a clear log
• App tags & quick filters: instantly see what’s allowed or blocked
• Quick Settings tile: toggle the firewall with one tap
TRANSPARENCY & CONTROL
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.
Firewall Security AI inspects outbound traffic via Android’s official VPN interface before it reaches the network—so you can:
• stop background connections from apps/services you don’t trust
• restrict social apps or games to Wi-Fi to better manage mobile data and roaming
• stay safer on public Wi-Fi by quickly blocking new or unknown apps
Note: 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.
PRIVACY BY DESIGN
Security decisions are made on-device. No mandatory logins. No unnecessary cloud processing. You can review logs, adjust rules, and build a setup that fits your day-to-day use.
ABOUT PROTECTSTAR
Firewall Security AI is developed by Protectstar™, an award-winning cybersecurity company trusted by 8M+ users worldwide. Protectstar’s AI-based security apps have been certified by independent organisations such as AV‑TEST and DEKRA.
REAL-WORLD USE CASES
• New apps: block first, check where they connect, then allow only what you need
• Travel: keep roaming strict and allow only essential apps
• Work & banking: block unknown hosts and keep your network behaviour auditable
• Family devices: keep certain apps offline to reduce background tracking and noise
• Privacy audits: identify “chatty” apps using the log and data counters
GET STARTED IN 3 STEPS
1) Install and open the app
2) Enable the personal firewall VPN
3) Set per-app rules (you can change them anytime)
NO OVERPROMISING
Firewall Security AI focuses on visibility and control of outbound connections from your device. By reducing unknown connections and tracker domains, it helps lower the risk of unwanted data sharing.