Protect My Phone
Open-source Android app for locating and controlling phones you own via SMS
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An open-source Android app that lets you locate, check status, sound alerts and remotely lock phones you own through SMS pairing.
About Protect My Phone

Protect My Phone is an open-source Android application designed for owner-approved device management across multiple phones. Pair trusted devices over SMS and QR-assisted fingerprint verification, with both owners approving the connection.
The app provides location tracking with timestamps, device status updates including battery and network information, and movement notifications when sharing is active. Users can trigger sound alerts to locate phones and optionally enable remote screen locking with Device Admin access on managed devices.
All pairing and status data remains stored on the phones themselves. SMS delivery relies on carrier service, and location features depend on device permissions and Android settings. The app is available as a direct APK download since Google Play excludes SMS-based device locators from permitted uses.
- location tracking
- open-source
- privacy
- sms
- device management
- remote-lock
- android
Features worth knowing
- SMS-based device pairing with QR-assisted fingerprint verification
- Real-time location tracking with timestamps
- Device status monitoring including battery and network
- Movement update notifications at selected intervals
- Remote sound alert to find phone
- Optional Device Admin remote screen locking
- Custom lock-screen owner text with Device Owner provisioning
- No account or command server required
- Owner-approved consent model for all features
Pricing
Pricing model: Open source
Protect My Phone metrics
| Metric | Value |
|---|---|
| Domain Rating | 0 no change since last check |
| Trust Flow | 0 no change since last check |
| Citation Flow | 9 no change since last check |
| Referring domains | 4 no change since last check |
| External backlinks | 8 no change since last check |
Ahrefs Domain Rating scanned 2 Nov 2026, updated 2 Nov 2026. Majestic scanned 2 Nov 2026, updated 2 Nov 2026. Link stats via Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Protect My Phone domain facts
Reveal the domain facts
| Domain age | 1 year |
|---|---|
| Registered | |
| Expires | |
| Registrar | Porkbun LLC |
| DNSSEC | Not signed |
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FAQ
- How is my location data handled?
- Location requests and status reports remain on your phones. Map display uses OpenFreeMap, which receives your IP address and displayed map areas. QR scanning uses Google ML Kit, which processes camera images on-device and may send technical information to Google including device model, app version, and scanning events.
- Do I need an account to use Protect My Phone?
- No, the app requires no account or central command server. Communication between paired phones happens directly via SMS.
- Can I use this app to track anyone's phone without permission?
- No. The app is designed exclusively for devices you own or have explicit permission to manage. Both owners must understand and agree to all features. Using it for covert tracking, stalking or harassment is prohibited.
- What Android version is required?
- Protect My Phone requires Android 8.0 or higher.
- Will Google Play Protect block the installation?
- Google Play Protect may show a warning because the app is distributed outside Google Play and requests SMS permissions. You can temporarily turn off Play Protect scanning in Play Store settings to install it, then turn scanning back on.
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