Steady

Fasting is one decision a day. Most fasting apps turn it into many decisions: streaks to protect, badges, water and weight logs, and multiple reminders before lunch. Most people don’t fail at fasting; they fail at one hour. Tired, hungry, and low feelings happen at the same point in a fast and then pass. Steady learns when that hour comes for you and checks in just before it. Feeling low? Three minutes of paced breathing or a small puzzle helps. Two hours later, it shows you from your own record that it passed.

No streaks, badges, ads, or analytics. Tap "dizzy" and it tells you to eat, whatever the hour. No account needed; your data stays on your iPhone. In public beta on TestFlight.