is an advanced no-root Android firewall and app blocker with
built-in DNS privacy control. It shows which apps can access the
internet blocks trackers and spy servers and stops unwanted
connections in real-time with an on-device AI security engine.
Many apps and system services silently send data to analytics
providers ad networks or unknown servers in the background.
Firewall Security AI gives you visibility: every connection attempt
is logged with app host and country so you can block it with a
single tap and help prevent data leaks before they happen.
WHY THIS NO-ROOT FIREWALL
• No root required: install enable the personal firewall VPN and
protect your device in seconds.
• All filtering on-device: traffic is routed through a local VPN
interface on your phone not through remote VPN servers.
• Ad-free and privacy-focused: for users who want strong firewall
anti-spy and hacker protection without clutter or in-app ads.
• No account needed: use the app without registration; firewall
rules and logs stay on your device.
• Android 15 compatible and optimized for modern phones and
tablets.
KEY FEATURES
• AI firewall & Deep Detective™ – Analyzes network behavior in
real-time and helps detect suspicious or unknown connections
trojans and spyware.
• App & internet blocker – Create per-app rules for Wi‑Fi mobile
data and roaming or completely block selected apps from going
online.
• Intrusion Prevention System (IPS) – Focuses on blocking known
outbound threats by using advanced filter lists with millions of
malicious tracking and spy domains so suspicious connections from
your apps are stopped before they leave your device.
• DNS privacy & control – Choose secure or custom DNS providers and
use DNS-based blocking to reduce tracking ads phishing and simple
censorship attempts – no root required.
• Powerful filter lists – Use cybersecurity-grade lists with over
10 million domains to reduce ads tracking malware and spy
servers.
• Live connection log – See outbound connections in a clean log
with app name host IP address country and timestamps so you always
know where your data is going.
• Live data counters – Monitor how much data each app is sending or
receiving directly inside the firewall.
• App tags & quick filters – Color-coded tags show at a glance
which apps are allowed or blocked.
• Quick Settings tile – Toggle the firewall with a single tap from
the Android Quick Settings panel.
TRANSPARENCY AND CONTROL
Firewall Security AI inspects outgoing traffic via the official
Android VPN interface before it reaches the network. 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.
This lets you:
• Stop background connections from apps and services you do not
trust.
• Limit social media or games to Wi‑Fi only saving mobile data and
roaming costs.
• Protect yourself on public hotspots by quickly blocking new or
unknown apps.
• Understand which apps use the most network traffic and adjust
rules in seconds.
PRIVACY-FOCUSED DESIGN
All decisions are made on your device. AI checks run locally and
the firewall tunnel stays on your phone instead of forwarding
traffic to external VPN servers. Firewall Security AI is designed
to fit into everyday use without slowing your device down while
still giving you the transparency and control usually reserved for
power users.
ABOUT PROTECTSTAR
Firewall Security AI is developed by Protectstar™ an award-winning
cybersecurity company. Protectstar’s AI-based security apps are
trusted by over eight million users worldwide and have been
certified by independent organizations such as AV-TEST and
DEKRA.
With Firewall Security AI – No Root you add a powerful layer of
network protection anti-spy and hacker defense to your Android
device – with full control in your hands.