Join the community and collect cell towers locations from your area!
About this app
Tower Collector gives you opportunity to contribute in OpenCellID.org and BeaconDB 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 and BeaconDB 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. Tower Collector gives you opportunity to contribute in OpenCellID project by uploading cell towers locations from your area. Collected data can be used to quickly locate devices without enabling GPS.
BeaconDB is an a public database that collects location information about common wireless infrastructure (cell towers, WiFi access points, Bluetooth beacons). The cell tower data you contribute will be aggregated and released to the public under the "Creative Commons (CC-0)" license.
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This application does not collect, store or send any information which can be used to directly identify user, device which is being used or any other personal information.
BUG REPORTS AND FEATURE REQUEST VIA EMAIL OR GITHUB ISSUES PLEASE.
Licensed under MPL-2.0, by Adam Zamojski.
What's New in v2.18.0
Imported from the F-Droid repository index.
- - Improve compatibility with Android 17 and 16.
- - Hide 'Project support' link on Google Play's app version.
- - Update external libraries.
Version history
Jun 18, 2026 · 4.4 MB · Android API 23–37 · code 2180528
Imported from the F-Droid repository index.
- - Improve compatibility with Android 17 and 16.
- - Hide 'Project support' link on Google Play's app version.
- - Update external libraries.
SHA-256 a1cc409c949770aade40ec026b9eddf99f933ebb94cbca96e9fce4d43cb74ac9
May 13, 2026 · 4.2 MB · Android API 21–35 · code 2170423
Imported from the F-Droid repository index.
- - Fix application crash on startup.
SHA-256 8fb4fc097162177a096d716a8dcd6d42ce9363b2c59dc837c66bb59cf8df04e9
May 12, 2026 · 3.9 MB · Android API 21–35 · code 2170322
Imported from the F-Droid repository index.
- - Update background location permission rationale to satisfy Google Play Prominent Disclosure requirement.
SHA-256 0cda4d7da093dade014819b3c3a59f552685da7f8e9b957701dde0841891eb25
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be info.zamojski.soft.towercollector is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2.17.4 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Tower Collector first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Tower Collector, and a listing is removed when the evidence for it stops holding up.
Get Tower Collector
Every source we list for info.zamojski.soft.towercollector is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
a1cc409c949770aade40ec026b9eddf99f933ebb94cbca96e9fce4d43cb74ac9
Signing certificate
2bedee579d48adb737a70cb95582aefea9c1fe8de41ec26045f0f7dc709115b0
Permissions Required
What each permission lets Tower Collector do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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