tower

find location (cell or GPS), view online maps, store waypoints and tracks

no Google Services dependencies, only necessary permissions (fine and coarse location, internet, foreground service)

connects to several online map providers

acceptable performance on slow GPRS-EDGE networks; may find coarse location by phone cell without GPS; may create waypoints with GPS without phone and internet connections

displays and saves cell info ( MCC, MNC, LAC, CID ) and the signal strength ( RSRP/dBm )

all waypoints are stored on a memory card and may be organized in any number of files (by regions etc.)

waypoint lists may be exported or imported in the GPX format, compatible with many navigators and software

finds location only by explicit user's command, so is very mild on the battery

capable of writing tracks (by means of a foreground service) and exporting them in the GPX format

tracks from other devices (GPX files) may be viewed along with your data

NOT implemented: map offline caching, routing, editing tracks, photo and video attachments, serving cold beer :)

for pure open distributions, that lack API keys and access to some services, there are options to enter user's own keys

Anti-Features

This app has features you may not like. Learn more!

This app promotes or depends entirely on a non-free network service

License: GNU General Public License v3.0 or later
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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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Version 2.11.1 (82) suggested Added on Nov 12, 2024

This version requires Android 5.0 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- access approximate location only in the foreground
  
  This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
- access precise location only in the foreground
  
  This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- run foreground service with the type "location"
  
  Allows the app to make use of foreground services with the type "location"
- have full network access
  
  Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
- show notifications
  
  Allows the app to show notifications
- read the contents of your shared storage
  
  Allows the app to read the contents of your shared storage.
- modify or delete the contents of your shared storage
  
  Allows the app to write the contents of your shared storage.
- truewatcher.tower.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK 3.1 MiB PGP Signature | Build Log
Version 2.9.6 (75) - Added on Dec 20, 2023

This version requires Android 5.0 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- access approximate location only in the foreground
  
  This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
- access precise location only in the foreground
  
  This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- run foreground service with the type "location"
  
  Allows the app to make use of foreground services with the type "location"
- have full network access
  
  Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
- read the contents of your shared storage
  
  Allows the app to read the contents of your shared storage.
- modify or delete the contents of your shared storage
  
  Allows the app to write the contents of your shared storage.
Download APK 1.7 MiB PGP Signature | Build Log
Version 2.8.3 (68) - Added on Jan 14, 2021

This version requires Android 5.0 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- access approximate location only in the foreground
  
  This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
- access precise location only in the foreground
  
  This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
- run foreground service
  
  Allows the app to make use of foreground services.
- have full network access
  
  Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
- read the contents of your shared storage
  
  Allows the app to read the contents of your shared storage.
- modify or delete the contents of your shared storage
  
  Allows the app to write the contents of your shared storage.
Download APK 1.1 MiB PGP Signature | Build Log