Byo-yomi

This is a simple and intuitive countdown timer designed to help you focus on your Go match.

This app is a 2-player Go timer used alternately by Black and White players. By setting both the base time and the countdown, it closely simulates a real game environment. You can easily advance turns with just a tap on the screen, allowing you to concentrate solely on the match without complex controls.

Key Features

Timer for Black/White 2-player matches

Supports base time + countdown (Byo-yomi)

Set countdown time and number

Automatic turn transition upon move

Notifications when time is low

Supports beep or vibration notification modes

Pause, resume, and reset functions

Korean / English support