CHRONEX — Stopwatch & Timer

linearjeph

About this app

CHRONEX is a precision time management app with three powerful tools in one: stopwatch, countdown timer, and world clock. No ads, no sign-up, works 100% offline.

STOPWATCH
Start, stop, and reset with centisecond precision. Record unlimited laps — your best lap is highlighted in green and worst in red for instant performance analysis. Time displays use crisp monospace typography for perfect readability.

COUNTDOWN TIMER
Six quick-start presets: 1, 5, 10, 15, 30, and 60 minutes. Or set your own custom hours, minutes, and seconds. A beautiful circular countdown ring animates in real time, and an audible alarm sounds when your timer finishes.

WORLD CLOCK
Track time across 24 cities worldwide including New York, London, Tokyo, Lagos, Sydney, and more. Each city shows its current time, UTC offset, and a day/night indicator. Add, remove, and reorder cities to build your personal dashboard.

FEATURES
- Centisecond precision stopwatch
- Unlimited lap recording with best/worst highlighting
- 6 quick-start timer presets (1-60 minutes)
- Custom timer with hours, minutes, seconds
- Animated circular countdown ring
- Audible alarm on timer completion
- 24 world cities with live clocks
- Day/night indicators for each city
- Add, remove, and reorder world clock cities
- Dark and light theme toggle
- Monospace JetBrains Mono time display
- Works 100% offline
- No sign-up, no account needed
- No ads, no tracking, no data collection
- Lightweight and battery-friendly

PRIVACY FIRST
CHRONEX stores only your selected cities and theme preference locally on your device. No data is collected, transmitted, or shared. Read our privacy policy at chronex.kelthos.com/privacy

Built by Kelthos — beautiful, privacy-first utility apps

What’s new

Initial release of CHRONEX — Stopwatch & Timer

- Precision stopwatch with centisecond accuracy
- Lap recording with best/worst highlighting
- Countdown timer with 6 quick presets and custom input
- Animated circular countdown ring with alarm
- World clock for 24 cities with day/night indicators
- Dark and light theme support
- Works offline, no sign-up required