# Tower Collector (open-source maps and navigation app)

> Tower Collector is a free, open-source maps and navigation app for Android. Join the community and collect cell towers locations from your area. It has 350 GitHub stars and is released under the MPL-2.0 license, and you can install it from F-Droid and Google Play.

Tower Collector gives you opportunity to contribute in OpenCellID.org, BeaconDB and @t0stbrot projects by uploading GPS locations of GSM/UMTS/LTE/CDMA/TD-SCDMA/5G (NR) cell towers from your area. The measurements help map the extent of mobile phone network coverage. You can use the app to collect data for personal purposes and export them to various files. Some features: • specially optimized GPS parameters to reduce battery drain • upload to OpenCellID.org, BeaconDB and @t0stbrot projects • export to SD card as CSV, JSON, GPX, KML and KMZ. • ad-free, forever! The OpenCellID.org project goal is to create a worldwide open source database of mobile cell locations.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/zamojski/TowerCollector |
| Platforms | Android |
| Built with | Java |
| GitHub stars | 350 |
| License | MPL-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/info.zamojski.soft.towercollector/ (package info.zamojski.soft.towercollector) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=info.zamojski.soft.towercollector |
| App Store | not linked |
| Website | https://towercollector.zamojski.feedback/ |
| Official | no |
| Category | Maps & navigation |
| Latest release | 3.0.0 (Oct 6, 2026) |
| Last commit | Oct 7, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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