Submitted — awaiting review
Vasten: Fasting Timer
Your fast. Your history. Your data.
A focused, private fasting timer with custom goals, approximate metabolic stages, editable history, widgets, Live Activities, and private iCloud sync.
What it does
Start in one tap
Choose a start time and target, then follow every second without accounts, feeds, or coaching.
Useful history
Edit completed fasts and see totals, averages, streaks, and a twelve-week activity overview.
Context without fake precision
Broad metabolic-stage ranges explain what may be happening without pretending a timer can measure your body.
Visible everywhere
Widgets, Live Activities, Dynamic Island support, and target notifications keep the timer close.
Private by design
No account, advertising, analytics, or developer-operated backend. Private iCloud sync is optional.
Your records stay portable
Export your fasting history as JSON or CSV, import it again, or delete it whenever you choose.
A focused timer from start to history
Start immediately, understand the broad stages of a fast, review your rhythm over time, and keep the timer visible through widgets and Live Activities. Select a screenshot to view the original.
No account between you and your history
Fasting records stay on your device and can synchronize through your private iCloud database. There is no advertising, tracking, analytics SDK, subscription, or developer-operated account system.
Your history can be exported as JSON or CSV, imported again, edited, or deleted.
Fasting context, not medical claims
Vasten presents metabolic stages as broad educational ranges. A timer cannot measure ketosis, autophagy, or what is happening in your body at an exact moment.
The reading below adds more background on fasting duration, fat loss, and autophagy. Vasten is not a medical device or medical advice.