Guides
The methods behind the timers, in plain English: where each one comes from, how to do it, what the evidence says, and a timer to try it with, free in your browser.
The Pomodoro Technique: how to do it, and make it stick
How to do the Pomodoro Technique: 25 minutes of work, a short break, a longer one after four. Where it came from, why it fails, and how to make it stick.
6 min read
Box breathing (4-4-4-4): a calm, even breath in four counts
How to do box breathing: in for four, hold for four, out for four, hold for four. Who uses it, what the research says, and when to stop.
4 min read
4-7-8 breathing: how to do it, and when to use it
4-7-8 breathing, popularised by Dr. Andrew Weil: in through the nose for 4, hold for 7, out through the mouth for 8. How to do it, how often, and cautions.
4 min read
The 20-20-20 rule for screen eyes
The 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. Why eye doctors recommend it, how to keep it up, and what it can't fix.
4 min read
How long should a power nap be?
How long a power nap should be, why longer naps can leave you groggy, the best time of day to nap, and what NASA's famous study of pilots really found.
4 min read
Tabata: 20 seconds on, 10 seconds off, eight times
What Tabata training is: eight rounds of 20 seconds hard and 10 seconds rest. The 1996 study behind it, how people use it today, and how to do it safely.
4 min read
Take Timer AI to your phone
The timer on your Lock Screen and in the Dynamic Island, as a Live Activity.
Download on the App StoreGet it on your iPhone
Point your iPhone's camera at the code to open Timer AI on the App Store.