coShin

A full-screen colour flasher & stopwatch. Cycle through your chosen colours automatically on a timer or manually record lap splits in stopwatch mode — tweak settings any time.

3.0

How to Use coShin

coShin is a full-screen colour flasher & stopwatch.

Features & Options

Modes: Switch between Timer (auto-advancing countdown) and Stopwatch (count-up with lap logging) in Settings (⚙).
Stopwatch & Laps: Tap LAP (or anywhere on screen / Spacebar) to record lap split times and cycle to the next colour. Press STOP to pause and access RESUME, RESTART, or END.
Timer Interval: Customise the display time per colour (from 0.5 to 60 seconds) for Timer mode.
Colour Order: Toggle between Random shuffling and Circle (sequential order) cycling.
Custom Palette: Add any custom hex colour using the colour picker, or remove chips to tailor your palette.
Screen Sleep Prevention (Wake Lock): Keeps your display active while flashing so your screen won't sleep unattended.
Colour History: Tracks recent flashed colours in a top bar during Timer mode playback.

Settings

Mode

Interval between colours (seconds)

Colour order

Colours

© shadoll, 2026. Made by Mykolay, assisted by AI