Comparison

Fasting Path vs Sundial

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Fasting Path

Features
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Fasting Path is the simplest way to start intermittent fasting - and the most rewarding way to stick with it. Whether you're brand new to intermittent fasting or you've been doing 16:8 for years, Fasting Path turns your fast into a clear, science-backed daily ritual. No clutter. No guilt. No confusing macros. Just a beautiful fasting timer, real progress tracking, and a community that's fasting alongside you. A FASTING TIMER THAT JUST WORKS Tap once. Your fast begins. Our circular fasting timer shows your real-time progress, current metabolic phase, and eating window countdown - so you always know exactly where you are in your day. 8 INTERMITTENT FASTING PROTOCOLS Pick the intermittent fasting schedule that fits your life: - 16:8 - the classic, perfect for beginners - 18:6 - the next step up - 20:4 - the Warrior Diet - OMAD - One Meal A Day (23:1) - 24-hour fast - 36-hour extended fast - 48-hour deep fast - Custom - set any window you want FAST WITH FRIENDS (OR THE WORLD) Fasting alone is hard. Fasting together is fun. Create a private group with friends and family, or join a public group and chat with thousands of fasters in real time. Group fasting is about support, not competition - celebrate streaks, share wins, and lean on the community when day three gets tough. LEARN THE SCIENCE OF FASTING Our knowledge library translates the research into plain English. Discover what's actually happening in your body during your fast: glycogen depletion, ketosis, autophagy, growth hormone release, and the metabolic switch. Topics include: - Hour-by-hour: what happens during a 16:8 fast - Autophagy and cellular repair - How to break a fast safely - Mental clarity, focus, and fasting - Hydration, electrolytes, and water fasting - Real success stories from real fasters BADGES AND STREAKS THAT KEEP YOU GOING Earn achievement badges for every fast, every milestone, and every streak. Climb from Bronze to Silver to Gold to Platinum. Track your total fasts completed, longest fast, and current day streak - small wins that compound into big results. NOTIFICATIONS THAT HELP, NOT NAG Get the right tip at the right time: a hydration nudge at hour 8, a metabolic milestone at hour 12, gentle encouragement at hour 16. Quiet by default - you control everything. YOUR PERSONAL FASTING JOURNAL Log your mood, energy, and notes after every fast. Spot patterns over time. Export your full fasting history as a CSV - perfect for sharing with your doctor, dietitian, or coach. BOOST WHEN YOU NEED IT Hitting a wall during your fast? One tap on Boost gives you immediate, science-backed encouragement and practical coping tips to push through. BUILT AROUND YOUR GOALS Tell us what matters: weight loss, metabolic health, mental clarity, longevity, energy, or building discipline. Fasting Path tailors your experience to what you actually want. PRIVACY FIRST Your fasting data is yours. We never sell it. We never share it. End of story. FREE TO START - PRO WHEN YOU'RE READY The core fasting timer, all 8 protocols, and group fasting are free. Pro unlocks the full knowledge library, advanced badges, and detailed analytics: - Monthly: $9.99 - Yearly: $59.99 (just $4.99/month - best value) - Yearly plan: 7-day free trial for eligible new subscribers, then $59.99/year. Cancel anytime. Start your intermittent fasting journey today. Download Fasting Path and join a community of fasters who are taking back their health, one fast at a time. Questions? Email FastingPath.Support@gmail.com or visit www.fastingpathapp.com/support Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.fastingpathapp.com/privacy

About

Sundial

Features
Read full description

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, $2.99. 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 ($2.99, 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.

Screenshots

Fasting Path4 screens
Sundial4 screens

Verdict

The call

The clearest difference is update cadence: Fasting Path at every 4 days against Sundial's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Fasting Path sells 2 in-app purchases, starting at $9.99 per month and Sundial sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fasting Path ships an update every 4 days, Sundial every 5 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard1 real difference ยท 5 level
Fasting Path versus Sundial: the parameters behind the verdict, then further details
ParameterFasting PathSundial
PriceFreeFree
Update frequencyEvery 4 days โ€” betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better16.4
Further details โ€” not scored
Size53 MB58 MB
Age rating17+4+
DeveloperTHOMAS SAVAGE HEYWARDVitalii Iudin

In-app purchases

2 purchases

Fasting Path

Subscriptions2
  • Premium Monthly$9.991 Month
  • Premium Yearly7 Days trial$59.991 Year
1 purchases

Sundial

One-time1
  • Sundial Lifetime$2.99

Questions

Is Fasting Path free?
Fasting Path is free to download, with in-app purchases available.
Is Sundial free?
Sundial is free to download, with in-app purchases available.
Do Fasting Path or Sundial have ads?
Neither Fasting Path nor Sundial shows ads.
Which is updated more often, Fasting Path or Sundial?
Fasting Path ships an update every 4 days, and Sundial every 5 months. Most recently, Fasting Path was updated on November 9, 2026 and Sundial on November 5, 2026.

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