(1.14 MB)
Editor's Overview
Compose Stopwatch is a stopwatch application developed by F-Droid Open Source, packaged as a single Android APK of version 1.8 weighing in at 1.14 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.
Install Checklist
- Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
- File size is a light 1.14 MB, so it installs quickly even on modest connections.
- This build is signed by "F-Droid Open Source" — always verify the developer name matches what's listed on the app's official store page before installing an update.
- After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
- We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.
About this app
► New Stopwatch Settings
• Enable Auto Start 3 seconds after app launch with override option
• Enable vibration for better tactile sensation
• Select action when you tap on the clock
► Circular progress
• Displays the progress of the current lap based on the very first one
• A dash on the lap progress shows the previous lap
► Change theme, new themes are available
• Dynamic theme is only available with android 12+
• Extra Dark theme saves charging for Amoled screen
► Change orientation
• Portrait mode has more space for laps
• In Landscape mode, time text is larger
► Select an action when you tap on the clock that shows the time
• Resume or pause
• Resume or add lap
• Resume or pause
• If you don't want to do this, you can remove the action
► Switching notifications on/off
• Stopwatch control in notifications
• When switched off, the stopwatch works on ViewModel and DataStore
• When enabled, the stopwatch works on LifecycleService and ForegroundService
► Screen Awake mode
• Ability to watch the stopwatch without the screen falling asleep
Details
| Version | v1.8 |
|---|---|
| Size | 1.14 MB |
| Developer | F-Droid Open Source |
| Category | Stopwatch |
| Package | com.justdeax.composeStopwatch |
| Android | 4.1+ |
| Last Updated | Oct 30, 2026 |
| Downloads | 21 |
Frequently Asked Questions
Is Compose Stopwatch free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.
What Android version does Compose Stopwatch require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.
Is Compose Stopwatch safe to install?
We link to the exact APK published by F-Droid Open Source. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.
How do I update Compose Stopwatch?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).
Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.
How to Download & Install Compose Stopwatch
- Tap the Download APK button above and save the file to your device.
- Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
- Open the downloaded
com.justdeax.composeStopwatch.apkfile from your Downloads folder. - Tap Install and wait for Android to finish.
- Open «Compose Stopwatch» by F-Droid Open Source and grant only the permissions it actually needs.
- Revoke the "unknown sources" permission once you are done installing.
Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.
