Box breathing
Equal on all four sides — in, hold, out, hold. Steady and level.
The pattern In 4 s · Hold 4 s · Out 4 s · Hold 4 s
The timer on this page is the app. Set the pace and press Begin.
What it does
Equal sides give you nothing to anticipate. The evenness is the point, not the holds.
The app
Tide is a breathing timer that runs on your phone or in this browser. It opens ready to go and lets you set any pattern you like.
On your phone it runs with sound and haptics, and it works with no connection at all.