Plunge Tracker
io.github.jherforth.plungetrackerOffline cold plunge timer and log. No accounts, no network, no tracking.
Latest documented release1.0.115 Oct 2026 · 3.0 MB→01 / Overview
Is Plunge Tracker safe?
Plunge Tracker is a small, deliberately simple timer and logbook for cold water immersion. Set a target, start the timer, get an audible cue when you reach it, and the session is logged with its duration and water temperature. Everything happens on your device. There is no account to create, no sync service, no analytics, and no advertising. The app never contacts a server. Features Countdown tim…
- Developer
- Jason Herforth
- Category
- Sports & Health
- Earliest archived version
- 04 Oct 2026
- License
- MIT (per F-Droid metadata)
02 / Release notes
Release notes from F-Droid
The app icon now shows on F-Droid. It had been missing from the listing because the icon was vector-only, which F-Droid cannot display. Nothing changes on your device.
Full notes →Countdown timer with an adjustable target duration Optional 10 second run-up, so you have time to get in before the clock starts Session history with duration and water temperature CSV and JSON export of your full history Optional ambient soundscapes and completion chimes Celsius/Fahrenheit and…
Full notes →03 / Package identity
Technical fingerprint
io.github.jherforth.plungetrackerabdbccb9e1c94c3d741d9e33f572460ea73b9010580455a2b6887273363a3a1774:27:A8:CC:09:E5:06:B7:4B:9D:DE:F2:F8:50:D4:51:03:55:92:C8:71:FC:51:5F:77:F8:82:56:7C:37:05:2904 / History
Archive history
2 versions in WIKI archive: earliest 1.0.0 (04 Oct 2026), latest 1.0.1 (15 Oct 2026).
No change in android.permission.* between 1.0.0 and 1.0.1.
05 / Version archive
Documented releases
2 TOTAL06 / Safety & access
Safety verdict
Declared permissions
Tracker status: Not assessed by WIKI for Android.
07 / Sources
Evidence ledger
Each entry is a captured public reference backing this record.