Stopwatch with current time display for long, non-interactive sessions.
About this app
Tranquil Stopwatch is a reliable stopwatch designed for extended use with minimal power consumption. It is particularly well-suited for non-interactive sessions, such as meditation or long periods where you cannot actively interact with your device but still need to track elapsed time and know the current time.
**Key Features:**
- **Power Efficiency**: Optimized for long-duration use, with a black AMOLED-friendly screen and no milliseconds display to minimize power consumption. Please note that this app operates without any background service. - **Reliability**: Ensures accurate timing without deviations, even during extended periods of use. - **Simple Operation**: Easily pause, resume, and reset the timer; no additional features like laps. - **Current Clock Display**: Shows the current time in addition to the stopwatch, perfect for sessions where constant interaction is not possible. - **No Disruptions**: The app does not interrupt you with advertisements, review requests, or other prompts, ensuring a smooth and distraction-free experience. - **Optional Audio Beepers**: Create audio alerts during your stopwatch sessions to keep track of the elapsed time without watching the screen.
Licensed under GPL-3.0-only.
What's New in v1.12.1
Imported from the F-Droid repository index.
- New feature: Custom font
Version history
Feb 7, 2026 · 2.4 MB · Android API 27–36 · code 17
Imported from the F-Droid repository index.
- New feature: Custom font
SHA-256 7bc31fae5cd2e9d815414dafb437f9a9a2fd21f4dc16d9929adc5fec962c5cb7
Jan 25, 2026 · 2.4 MB · Android API 27–36 · code 16
Imported from the F-Droid repository index.
- New feature: Customizable Audio Beepers
- • Create up to 10 custom beep alerts during stopwatch sessions
- • Configure frequency, duration, waveform, and volume for each beeper
- • Set precise timing: delay, repetitions, and intervals
- • Option to override silent mode (play beeps like alarms)
SHA-256 802095e741ab282ce85b82d916fad4fb652e86b78617a0ffc0f662598f75604a
Aug 7, 2025 · 2.2 MB · Android API 27–36 · code 15
Imported from the F-Droid repository index.
- Fixed icon background
SHA-256 ec4dcccde9f7178c2d088f63a51f753de14a4d53373e2336c1e70393e80a7467
Will it run on your device?
60%
- Targets newer Android builds, so legacy devices may be excluded.
- 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 tibarj.tranquilstopwatch 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, 1.11.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Tranquil Stopwatch 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 Tranquil Stopwatch, and a listing is removed when the evidence for it stops holding up.
Get Tranquil Stopwatch
Every source we list for tibarj.tranquilstopwatch 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
7bc31fae5cd2e9d815414dafb437f9a9a2fd21f4dc16d9929adc5fec962c5cb7
Signing certificate
fe13fdfa891cc18426e6a361f2839067201a672b5cadd2bbddea8ce25d39a199
Permissions Required
What each permission lets Tranquil Stopwatch 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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