Boxtide

Long-form breathing and focus timers. A square, a moving dot, and nothing else on screen.

Sessions run 25 to 90 minutes: box breathing at several tempos, four-seven-eight, and coherent breathing at 5.5. Use them for deep work, for winding down, or for structured work blocks.

New sessions weekly.

The same timer is free on the web at boxtide.app — no account, nothing tracked, nothing stored off your device.

These are timing tools, not health advice. Sit or lie down. Never practise while driving or
in or near water. Stop if you feel light-headed.