Warden: Firewall & Anti-Spy
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About this app
Take back control of what your phone talks to — and find out what is watching you.
Warden is a no-root privacy firewall and counter-surveillance toolkit that runs entirely on
your phone. No account, no analytics, no ads, no data collection. Your rules, your logs and
your tracker history never leave the device.
IN THE FIRST MINUTE
• See the domains your apps are contacting right now. Most people are surprised.
• Cut any app off the internet with one tap.
• Scan the room for Bluetooth trackers that should not be there.
WHY IT ASKS FOR VPN PERMISSION
Warden uses Android's VpnService to create a local, on-device firewall. That is the only way
an app without root can control which apps reach the network. The tunnel begins and ends on
your phone — Warden operates no VPN server and routes none of your traffic to us or to anyone
else.
━━━ CONTROL YOUR NETWORK ━━━
• Per-app firewall — cut any app off with one tap, with separate Wi-Fi and mobile-data rules
that switch automatically.
• Lockdown mode — default-deny: nothing reaches the internet except what you allow.
• Live network log — every domain your apps look up, allowed or blocked, labelled by app.
• Deep Inspection — watch every connection every app makes, in real time. See who your apps
really phone home to.
• Encrypted DNS (DoH) — lookups travel over DNS-over-HTTPS, so your network cannot read the
domains you visit. Use a preset resolver, point Warden at any DoH endpoint you trust, or run
strict mode with no unencrypted fallback.
• WebRTC leak protection — block the STUN/WebRTC probes apps and sites use to uncover your
real local IP.
• Privacy filtering — subscribe to community domain lists, or write your own block and allow
rules.
• Profiles and Schedules — save your whole setup as named profiles and switch with one tap, or
on a timer: Deep Inspection by day, Lockdown overnight, automatically.
• Weekly report and home-screen widget — how many tracker lookups Warden stopped this week,
day by day.
━━━ SEE WHO IS WATCHING ━━━
• Surveillance Radar — scan nearby Bluetooth for hidden trackers: AirTag, Tile, SmartTag,
Chipolo and ALPR camera gear.
• "Is it following me?" — Warden warns when an unknown tracker stays with you across several
locations, and keeps that history on your phone only.
• Make it beep — force a detected AirTag to play its sound so you can physically find it.
• Background guard — keeps watching with the app closed.
• Ultrasonic beacon detector — listens for the inaudible 18-20 kHz tones some ads and stores
use to link your devices.
━━━ PRIVATE BY DESIGN ━━━
• No account, no analytics, no ads, no data collection.
• Honest about its limits — Warden tells you plainly what it can and cannot do.
• Warden's only outbound traffic: your own DNS lookups to the resolver you choose, anonymous
list downloads, and — only while the Surveillance Map is open — anonymous camera lookups
against public OpenStreetMap data near you.
━━━ FREE, WITH AN OPTIONAL UPGRADE ━━━
The firewall, lockdown, network log, privacy filtering, tracker radar, anti-stalking alerts
and the ultrasonic detector are free forever. Personal-safety alerts are never behind a
paywall.
Warden+ adds the curated list we recompile daily, Deep Inspection, tracker intelligence
(history and watched places), the camera-map layer, custom DNS resolvers with strict mode,
WebRTC/STUN leak protection, and Profiles with Schedules. $2.99/month or $24.99/year after a
7-day free trial — or buy it once and keep it forever. Cancel anytime in Google Play.
Warden is a privacy and data-control tool. It lets you decide, per app, what may use the
network, and helps you spot devices that may be following you. It does not modify other apps.
Requires Android's on-device VPN permission for the firewall (no traffic is routed off your
phone), plus Bluetooth and Location to scan for nearby trackers.
Warden is a no-root privacy firewall and counter-surveillance toolkit that runs entirely on
your phone. No account, no analytics, no ads, no data collection. Your rules, your logs and
your tracker history never leave the device.
IN THE FIRST MINUTE
• See the domains your apps are contacting right now. Most people are surprised.
• Cut any app off the internet with one tap.
• Scan the room for Bluetooth trackers that should not be there.
WHY IT ASKS FOR VPN PERMISSION
Warden uses Android's VpnService to create a local, on-device firewall. That is the only way
an app without root can control which apps reach the network. The tunnel begins and ends on
your phone — Warden operates no VPN server and routes none of your traffic to us or to anyone
else.
━━━ CONTROL YOUR NETWORK ━━━
• Per-app firewall — cut any app off with one tap, with separate Wi-Fi and mobile-data rules
that switch automatically.
• Lockdown mode — default-deny: nothing reaches the internet except what you allow.
• Live network log — every domain your apps look up, allowed or blocked, labelled by app.
• Deep Inspection — watch every connection every app makes, in real time. See who your apps
really phone home to.
• Encrypted DNS (DoH) — lookups travel over DNS-over-HTTPS, so your network cannot read the
domains you visit. Use a preset resolver, point Warden at any DoH endpoint you trust, or run
strict mode with no unencrypted fallback.
• WebRTC leak protection — block the STUN/WebRTC probes apps and sites use to uncover your
real local IP.
• Privacy filtering — subscribe to community domain lists, or write your own block and allow
rules.
• Profiles and Schedules — save your whole setup as named profiles and switch with one tap, or
on a timer: Deep Inspection by day, Lockdown overnight, automatically.
• Weekly report and home-screen widget — how many tracker lookups Warden stopped this week,
day by day.
━━━ SEE WHO IS WATCHING ━━━
• Surveillance Radar — scan nearby Bluetooth for hidden trackers: AirTag, Tile, SmartTag,
Chipolo and ALPR camera gear.
• "Is it following me?" — Warden warns when an unknown tracker stays with you across several
locations, and keeps that history on your phone only.
• Make it beep — force a detected AirTag to play its sound so you can physically find it.
• Background guard — keeps watching with the app closed.
• Ultrasonic beacon detector — listens for the inaudible 18-20 kHz tones some ads and stores
use to link your devices.
━━━ PRIVATE BY DESIGN ━━━
• No account, no analytics, no ads, no data collection.
• Honest about its limits — Warden tells you plainly what it can and cannot do.
• Warden's only outbound traffic: your own DNS lookups to the resolver you choose, anonymous
list downloads, and — only while the Surveillance Map is open — anonymous camera lookups
against public OpenStreetMap data near you.
━━━ FREE, WITH AN OPTIONAL UPGRADE ━━━
The firewall, lockdown, network log, privacy filtering, tracker radar, anti-stalking alerts
and the ultrasonic detector are free forever. Personal-safety alerts are never behind a
paywall.
Warden+ adds the curated list we recompile daily, Deep Inspection, tracker intelligence
(history and watched places), the camera-map layer, custom DNS resolvers with strict mode,
WebRTC/STUN leak protection, and Profiles with Schedules. $2.99/month or $24.99/year after a
7-day free trial — or buy it once and keep it forever. Cancel anytime in Google Play.
Warden is a privacy and data-control tool. It lets you decide, per app, what may use the
network, and helps you spot devices that may be following you. It does not modify other apps.
Requires Android's on-device VPN permission for the firewall (no traffic is routed off your
phone), plus Bluetooth and Location to scan for nearby trackers.
Block what your apps send out. Find AirTags and hidden trackers near you.
Updated on
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.
What’s new
New: see which companies (Google, Meta, TikTok…) are trying to track you · let a blocked app online for
15 min or 1 hour · optional alerts when a blocked app tries to connect · add your own blocklists by URL
· "Internet not working?" check with one-tap email support · sort and bulk-edit apps · better
screen-reader support · one clear protection-mode picker · Fixed: Deep Inspection now also blocks the
apps you blocked.
15 min or 1 hour · optional alerts when a blocked app tries to connect · add your own blocklists by URL
· "Internet not working?" check with one-tap email support · sort and bulk-edit apps · better
screen-reader support · one clear protection-mode picker · Fixed: Deep Inspection now also blocks the
apps you blocked.
Everyone
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About the developer
POWER PREPPER LLC
POWERPREPPERAPP@GMAIL.COM
2000 NE 135TH St APT 304
North Miami, FL 33181-2101
United States
+1 347-236-1592
