Sundial: Fasting & OMAD Timer
Eating window, log every fast
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
One meal. One ring. No subscription. A calm OMAD & fasting timer you own for life - one unlock, no account, no quiz funnel, no $60/yr renewal.
Finally, a fasting timer you buy once and own for life. No subscription. No account. No quiz-funnel paywall. Just open it and start your fast.
Sundial is a calm, local-first tracker for intermittent fasting and OMAD (one meal a day). One quiet ring; a sun crosses the dial as your fast deepens. Warm paper-and-ember design, automatic dark mode. No neon, no confetti, no streak-shaming. It works fully offline from the very first tap.
WHY SUNDIAL IS DIFFERENT
- Pay once, $19.99. No $60-80/year renewals for a glorified timer.
- No forced sign-up, no quiz funnel, no data siphoning. Cloud backup is optional, never required.
- Fasting zones and stages are explained for free - learn what each stage is called, hour by hour. Most apps lock this away.
- Custom durations up to 72 hours - log any fast you choose, with no upsell.
- Retroactive editing: forgot to hit start or stop? Fix it, or log a past fast.
- Your eating window anchors to when you actually broke the fast - not a rigid schedule.
FREE FOREVER
- Timer for every protocol: 16:8, 18:6, 20:4, OMAD, 36h, and custom.
- Fasting zones and stage labels on the dial.
- History, calendar, streaks, and weekly stats.
- Weight, water, and mood logging.
- Gentle notifications for start, end, and milestones.
- Export everything to CSV or JSON in two taps. Your data is yours.
LIFETIME UNLOCK ($19.99, ONCE)
- Cloud backup and cross-device sync.
- Insights: deeper trends over time.
- The full Field Notes library of calm, readable articles - including a plain explainer of what autophagy is.
Everything you need to fast is already free. Lifetime is for going further, on your terms.
BUILT TO RESPECT YOU
Local-first and private by design. No ads, no data mining, no guilt loops, no upsell screens between you and your timer. A quieter way to keep time.
Sundial tracks time. It is not medical advice. Talk to a healthcare professional before changing how you eat or starting extended fasts, especially if you are under 18, pregnant, managing diabetes, or have a history of disordered eating.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Vitalii Iudin, 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 Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Vitalii Iudin
- Size
- 67.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sundial Lifetime $19.99
- Copyright
- © 2026 DragonByte
