The Timer
A focused circular timer designed to stay readable, calm, and precise through long fasting windows. Presets for 16:8, 18:6, and OMAD included free.
Private Intermittent Fasting for iPhone
Fasting, without the bloat.
A beautifully clean fasting timer with home screen widget, lock screen Live Activity, and zero bloat. No social feeds, no AI coaches, no forced accounts.
Download on the App StoreTimer, eating window, history — free forever. Zero ads.
00:00:00
Remaining: 16h 00m
Manifesto
What's not in this app.
- No social feeds
- No AI coaches
- No forced accounts
- No ads
- No tracking
- No data leaves your phone
Privacy
Radically private. Zero servers.
ClearFast works fully offline. Timer state, fasting history, themes, and settings stay on your device. There is no cloud account, no analytics SDK, and no API traffic.
no API • no analytics • no cloud
Features
Everything you need. Nothing you don't.
Widget & Live Activity
See live fasting progress on your home screen and lock screen. Premium adds a progress ring, elapsed/remaining timers, and your chosen app icon.
Eating Window
After every fast, see how much eating time remains. The countdown is free for everyone; Premium adds an optional alert when your window closes.
Your History
Fast details, streaks, and stats live locally on your device. Free includes your latest 7 fasts; Premium unlocks unlimited history.
Insights & Export
Premium adds a compliance calendar heatmap, advanced chart filters, and branded CSV/PDF exports with meal details.
Make It Yours
Premium accent colors sync to your widget ring. Choose Midnight or Sunrise alternate app icons to match your style.
Pricing
Core fasting is always free. Zero ads forever.
Free
$0
Complete daily fasting flow with no ads.
- • Circular fasting timer with 16:8, 18:6, and OMAD
- • Eating window countdown after every fast
- • Meal notes on fast complete
- • History stats + latest 7 fasts
- • Basic fast reminders (halfway, close-to-goal, goal reached)
- • Offline-first, no account, zero ads
Monthly
$1.99
Widget, Live Activity, calendar, exports, and more.
- • Home screen widget + Live Activity timer
- • Unlimited history + compliance calendar
- • Full chart filters + CSV/PDF export
- • Custom fasting length (1–48h)
- • Weekly schedule + custom interval reminders
- • Eating window end notification
- • Accent colors + alternate icons (Midnight, Sunrise)
Lifetime
$19.99
One-time unlock for all premium features. No recurring billing.
Pay once — includes all current and future Premium features.
Free and Premium are both private and ad-free.
Download now
Available on the App Store
FAQ
Clear answers.
Why no accounts?
Because fasting doesn't need identity infrastructure. You open the app and start. That's it.
Where is my data stored?
On your device only. Timer state, history, and settings are local-first and offline. Widget and Live Activity data stays on-device too — shared via Apple's App Groups, never sent to our servers.
Do widget and Live Activity require Premium?
Yes. Premium unlocks the live home screen widget and lock screen Live Activity timer. Free users can still add the widget, but it shows an unlock prompt until you upgrade.
What is the eating window?
After you end a fast, ClearFast shows how much eating time remains (24 hours minus your fast length). The countdown on the timer screen is free. Premium adds an optional local notification when your eating window closes.
Can I export my history?
Yes. Premium includes CSV and PDF export with meal details and a scope picker (current view, 7 days, 30 days, custom range, or all). Free users can still view, delete, and manage history inside the app.
What alternate app icons are available?
Premium unlocks Midnight and Sunrise alternate icons. The default ClearFast icon is free.
Will you add AI coaching?
No. ClearFast is intentionally anti-bloat and keeps the product focused on core utility.
Are there ads in the free version?
No. ClearFast is ad-free in both Free and Premium. Premium adds the widget, Live Activity, unlimited history, compliance calendar, exports, weekly schedule, custom fast length, and personalization — not ad removal.