Steady
A fasting coach for iPhone
That stack tends to land around the same hour of a fast and lift again not long after, and no timer notices. Steady works out when it hits you, shows up just before, and later shows you it passed.
iPhone · 12 to 20 hour windows · No account · Your data never leaves your phone · See how it works
Steady builds a plan from how your days actually go — when they fall apart, what wanting to quit feels like, where past fasts broke. It predicts your hard hour and checks in just ahead of it.
The coach knows your record. It will remind you that you have held past this hour before, offer a timed delay rather than a lecture, and tell you to stop if you describe anything that sounds unsafe.
Mood, energy, a word or two for what it is like. That is the whole check-in. Tap anything physical — shaky, dizzy, heart racing — and Steady tells you to stop, whatever the hour.
Check in a couple of times during a fast, two hours apart, and Steady will show you whether the feeling tends to lift. Your own record, not a promise.
Fasts held, completion rate, your streak, your longest. And the one number most apps never show you: how often your mood was better two hours after a low check-in.
Mood by hour shows where the hard stretch actually falls for you — so the plan gets more accurate the longer you use it.
Fuel hands over from sugar to fat as the window runs. That is the whole mechanism — no mystery, no magic. Steady names the stages plainly and never tells you something is happening in your body that it cannot know.
Autophagy and true nutritional ketosis need roughly 24 hours or more. Steady tops out at 20, so it does not reach them — and we would rather say so than inflate the numbers like most fasting apps do.
There is no account, no sign-in, no analytics and no advertising. Everything Steady knows about you lives in a local database on your iPhone. Delete the app and it is gone.
Nothing to create, nothing to remember, nothing to leak. Payment is handled by Apple; Steady never sees your card or your name.
When you talk to the coach, the context for that one reply is sent to a server that stores nothing — no database, no logs of your words. Your phone keeps the conversation.
Steady asks about medications so the coach can be careful. The server only ever receives a yes-or-no risk flag. Which medication stays on your phone.
Read the full privacy policy and the health disclosure.
Steady is a fasting timer and a coach for the moment you want to quit. It is not medical advice, and it will tell you to eat when you should.