Fasting Timer - Simple Tracker
16:8, OMAD, Widget, No Ads
Only for iPhone
$5.99
iPhone
No subscriptions. No ads. No sign-up. One tap to start tracking your fast. Finally, a fasting timer that gets out of your way.
Fasting apps that won't let you fast in peace — sound familiar?
You download a fasting tracker. Before you can even start, it wants your age, weight, height, goals… the list goes on. You finally get through it all — only to hit a paywall. No subscription, no timer.
So you try a free app instead. But every time you tap "start" or "stop," a full-screen ad takes over. You just want to track a 16-hour fast, not sit through endless interruptions.
That's why we built PetitFast. One tap. That's all it takes.
PetitFast is a fasting timer stripped down to what actually matters: when you last ate, and how long you've been fasting. No account. No health questionnaire. Just install, tap reset when you eat, and you're done.
See Your Fasting Progress at a Glance
A beautiful circular timer ring shows exactly where you are in your fast. The ring fills over 24 hours, changing color as your body moves through different metabolic stages:
- Digesting (0–4 hours) — Processing your last meal
- Late Digestion (4–8 hours) — Digestion winding down
- Fat Burning (8–12 hours) — Tapping into fat stores
- Ketosis (12–16 hours) — Ketone production ramping up
- Autophagy (16+ hours) — Cellular cleanup begins
16:8, 14:10, OMAD — whatever your style, PetitFast adapts. No rigid plans to follow.
Widgets That Work for You
Most fasting apps lock widgets behind a paywall. PetitFast gives them to you for free.
Home Screen Widget — Live countdown with one-tap reset, right from your home screen. You might never need to open the app at all.
Fasting Calendar
See your complete fasting history laid out month by month. Each day shows color-coded meal times based on how long you fasted. Tap any day for the full picture: timestamps, fasting duration, and the metabolic stage you reached.
Need to fix something? Edit any record to adjust the time, add a note, or log calories.
Automatic iCloud Sync
Your fasting data backs up to iCloud automatically. Switch phones? Your records are already there. No account to create, no password to remember.
Completely Free. Forever.
- No subscription — not now, not ever
- No ads — no banners, no full-screen interruptions, nothing
- No account required
- No personal data collection
- Works fully offline
Features
- One-tap meal logging
- Beautiful circular progress ring
- 5 metabolic stage indicators
- Home screen widget
- Monthly calendar with fasting history
- Edit records — time, notes, calories
- Automatic iCloud backup & sync
- Works offline
- Supports English and Japanese
Start your fast with one tap. Check your progress at a glance. No subscriptions. No ads.
Download PetitFast — the fasting timer that stays out of your way.
Ratings & Reviews
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- App Title,Display name
The developer, kaisei watanabe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- kaisei watanabe
- Size
- 12.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © kaisei watanabe
