About
11 / 25
Stopwatch Pro
A precision time-tracking tool that continues running even when the app is closed. Features millisecond accuracy and a clean interface.
How to use
- Tap the clock to start.
- Tap again to pause, again to resume.
- Tap − or + to move the beep, 30 seconds a step.
- At the beep time: three beeps, the screen flashes.
- Tap Reset to go back to 00:00.
- ⌨️ Keyboard: Space starts and pauses, R resets.
📏 Limit: beep from Off to 99:59.
Who can do what
- 👤 Anyone: no sign-in needed.
- 🔒 Kept on this device: leave, reload or close the browser, it keeps counting.
- ⚠️ Another phone or browser? → Starts at 00:00: the run stays on the first one.