Ketora Fast Ring

Ketora Fast Ring is an intermittent fasting timer built around a single beautiful idea: your fasting and eating windows visualized as a smooth, animated countdown ring. No accounts, no subscriptions, no internet required.

Set up your fasting protocol — 16:8, 18:6, 20:4, or a custom split — and the ring does the rest. A clear progress arc divides your day into fasting and eating phases, so you always know exactly where you stand in your cycle at a glance.

The app ships with several popular intermittent fasting schedules and lets you define your own start time and window lengths. Each cycle is displayed with elapsed time, remaining time, and a phase label so there is never any guessing.

Everything runs locally on your device. No data leaves your phone. No registration is needed to get started — just pick a protocol and begin.

Features include an onboarding flow to help new users choose a fasting plan, a home screen with the animated ring timer, a history view of completed fasting cycles, and a settings screen where you can switch between light, dark, and system themes. The interface uses a subtle geometric background pattern and clear typography to keep the focus on your progress without visual clutter.

Ketora Fast Ring is designed for people who want a straightforward, distraction-free fasting companion that respects their privacy and works entirely offline.