Location tracker with focus on privacy and energy efficiency
About this app
μlogger ('micro-logger') is an application for continuous logging of location coordinates, designed to record hiking, biking tracks and other outdoor activities. Track points are saved at chosen intervals and may be uploaded to dedicated server in real time. This client works with μlogger web server. Together they make a complete self owned and controlled client–server solution.
Features
* meant to be simple and small (μ) * focus on privacy, doesn't use Google Play services, logs to self-owned server * low memory and battery impact * uses GPS or network based location data * synchronizes location with web server in real time, in case of problems keeps retrying * alternatively works in offline mode; positions may be exported to file and uploaded to the server manually * allows adding waypoints with attached images and comments (required server version 1.0+ for synchronization) * configurable tracking settings * export to GPX, KML format * automation
Licensed under GPL-3.0-or-later, by Bartek Fabiszewski.
What's New in v3.13
Imported from the F-Droid repository index.
- 3.13: μlogger
- Changes:
- - Target Android 16
- - Distinguish waypoints in GPX export using element
- - Restart logging after system crash, battery shutdown
- - Code cleanup
Version history
Sep 25, 2025 · 1.3 MB · Android API 21–36 · code 313
Imported from the F-Droid repository index.
- 3.13: μlogger
- Changes:
- - Target Android 16
- - Distinguish waypoints in GPX export using element
- - Restart logging after system crash, battery shutdown
- - Code cleanup
SHA-256 e403b15d9c5aab8b386031295a4d3bbcc40e5106b95910e14b000330f5259697
Mar 8, 2025 · 1.3 MB · Android API 21–35 · code 312
Imported from the F-Droid repository index.
- 3.12: μlogger
- Changes:
- - Optimized for Android 15
- - Minor UI tweaks, adjust for edge-to-edge display
- - Added support for per-app language preference (in system settings)
- Translations:
SHA-256 9e864f8961397df2f43eab1e5e01342a121c970d6003c9f9df43610df1b509e2
Apr 12, 2024 · 1.4 MB · Android API 21–34 · code 311
Imported from the F-Droid repository index.
- 3.11: μlogger
- Changes:
- - Some fixes for Android 14: broken internal broadcasts, crash on missing permission
- - Allow to install on devices that do not feature network provider
- Translations:
- - Added Galician translation (pikamoku)
SHA-256 a09f5d3cc260f722bd7e58a83a0b475d24a037eca97f8a677401973d7cc5c37a
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 net.fabiszewski.ulogger 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, 3.12 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall μlogger 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 μlogger, and a listing is removed when the evidence for it stops holding up.
Get μlogger
Every source we list for net.fabiszewski.ulogger 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
e403b15d9c5aab8b386031295a4d3bbcc40e5106b95910e14b000330f5259697
Signing certificate
70ab61a64edb3f75d32ae5777171bf0c2b3b8326f1ec3ade044ce7773b0e35cd
Permissions Required
What each permission lets μlogger 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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