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Fasting & water

Timers that respect your day.

An optional fasting timer and water tracker with goals, reminders and widgets. Off until you turn them on, and never written to Health.

Coming soon to the App StoreComing soon to Google Play
Ayuvo Summary
Stays on your deviceNo Ayuvo account, no Ayuvo server.
You choose the AIBring your own key, or run a model on the phone.
No ads, no analyticsNothing is tracked, sold or profiled.
Open sourceMIT-licensed. Read every line.
Fasting

A timer that survives restarts.

Turn fasting on in Settings, pick a goal from 1 to 168 hours and start a fast. The timer keeps running when the app closes, history is editable, and a goal notification is optional.

  • Off by default. Ayuvo never infers a fast from missing meals
  • Summary shows a Fasting card only while a fast is active
  • Quick Log widgets offer Start fast and End fast, and food logging pauses while a fast is active
Ayuvo Summary with Eat, Move and Drink rings
Water

A goal, a tap and a reminder.

Set a daily goal in millilitres or fluid ounces, log a glass in one tap or a custom amount, and add reminders. The Drink ring appears on Summary only when water tracking is on.

  • Water progress on the Apple Watch and in widgets
  • Hydration has its own charts from day to year
  • Water entries travel inside your food diary export
Ayuvo nutrition diary with water
Privacy

What fasting and water send, and to whom

Both features are local.

Nothing

Timers, goals and history are stored on the phone and are never written to Apple Health or Health Connect.

Reminders

Reminders are scheduled locally on the device.

Switching phones

Water and fasting settings and fasting sessions move between iPhone and Android in Export All Data.

See every data flow

Get started

Start with the whole picture.

Free, private, on your device. Bring your own AI key. No account, no subscription, no ads.

Coming soon to the App StoreComing soon to Google Play

Or read the code: Ayuvo is open source