Comparison

Fasting Well vs The Fast

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

Head to head
About

Fasting Well

Track your intermittent fasting journey with science-backed insights. Monitor your progress through different metabolic stages and view your history with a visual heatmap. Offers built-in plans and detailed scientific articles.

Highlights
  • Stage-aware fasting progress visualization
  • Live timer with customizable ring
  • Six built-in fasting plans
  • Journal and weekly progress charts
  • Science-backed articles on fasting
  • Calendar heatmap of activity
  • Privacy-first, on-device data storage
Features
Read full description

Fasting Well is a beautiful, science-grounded intermittent fasting tracker. Designed for the moments your fast actually happens — at home, in transit, before bed — with the kind of polish you'd expect from an app you open every day. EVERY FAST IS A JOURNEY A fast isn't a single state — it's a sequence. Anabolic. Catabolic. Fat-burning. Ketosis. Deep ketosis. Fasting Well shows you exactly where you are in that journey, with stage-aware visuals and a quiet narration of what's happening inside. WHAT YOU GET (FREE) • Live timer with the ring you'll want to watch • Six built-in plans: 16:8, 18:6, 20:4, OMAD, 24h, 36h • Stage-aware progress: see Anabolic → Ketosis unfold • Notifications when you cross a stage or hit your goal • Journal of your last 30 days with a weekly chart • Five long-form science articles, beautifully illustrated • Calendar heatmap of recent activity • Dark and light themes that look right on every screen WHY ANOTHER FASTING APP Because the popular ones either gutted their free tier or never felt like apps you'd open without a reason. Fasting Well is built to be the home screen icon you actually like seeing. PRIVACY-FIRST Your fasts and weight data stay on your device — no account, no cloud sync, no servers we own. To make the app better we collect anonymous usage signals (e.g. "a fast was started on the 18:6 plan" or "an article was opened") through PostHog. These contain no personally identifying information and can be turned off entirely in Settings → Privacy. SCIENCE-BACKED, NOT WELLNESS-HYPE Built on peer-reviewed fasting research. No talk of "detox." No supplements to sell. Just the metabolic story your body is actually telling. FASTING WELL PRO Go deeper with Pro: build custom fasting protocols, log your weight and watch the trend, unlock advanced statistics (12-week heatmap, completion rate, best streak), share beautiful fast cards, and pick from every accent color. Pro is a monthly or annual subscription, or a one-time lifetime purchase — and the core tracker stays free forever. QUESTIONS, FEEDBACK hello@fastingwell.app We're a small team. Every email gets read. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fastingwell.app/privacy

About

The Fast

Track your fasting periods with a visually engaging timer and home screen widgets. Review your history in a calendar view and share your progress as an image. An account is optional for local use, with cross-device syncing available.

Highlights
  • Customizable fasting timer
  • Home screen widgets
  • Live Activities support
  • Fasting history calendar
  • Shareable progress images
  • Optional account for sync
Features
Read full description

Fasting, at your pace. Choose a duration and start. A slowly moving record marks the time, with elapsed time and time remaining always within reach. ON YOUR HOME SCREEN Small and medium widgets keep your fast in view. Choose elapsed time or time remaining. The larger widget shows both, with the full record and progress. Live Activities keep the timer on your Lock Screen and Dynamic Island on supported iPhones. ON YOUR WRIST Check your timer, choose a duration for this fast, and start or end from Apple Watch. Add a watch-face complication for quick access. Requires The Fast on your paired iPhone. A MONTH, ON RECORD Browse your fasting history in a simple calendar. Finished goals retain their record color. Early endings appear in gray. Open any day to see each fast. YOURS TO SHARE Share one fast or your whole month as a single image. Include record details and exact times when you want to. LIGHT BY DESIGN Use the timer, history and widgets without an account. Your records stay on your device unless you sign in to save them across devices. Optional Apple, Google or email sign-in lets you keep records across devices. Free to use. No ads. The Fast records time. It does not provide medical or dietary advice.

Screenshots

Fasting Well4 screens
The Fast4 screens

Verdict

The call

The clearest difference is update cadence: The Fast at daily against Fasting Well's every 3 months. The Fast also leads on monetization model (free vs freemium). On price, rating, review sentiment and ratings volume there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Fasting Well against 5.0 for The Fast. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Fasting Well ships an update every 3 months, The Fast daily. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Fasting Well versus The Fast: the parameters behind the verdict, then further details
ParameterFasting WellThe Fast
PriceFreeFree
Rating5.0 (2 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings24 — better
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS17.016.4 — better
Further details — not scored
Size45 MB32 MB
Age rating4+4+
DeveloperGeneralizablePrime Adventure LLC

Customer experience

Fasting Well

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

The Fast

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Fasting Well

No in-app purchases

None

The Fast

No in-app purchases

Questions

Is Fasting Well free?
Fasting Well is free to download, with no in-app purchases.
Is The Fast free?
The Fast is free to download, with no in-app purchases.
Which has better reviews, Fasting Well or The Fast?
Fasting Well and The Fast are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.
Do Fasting Well or The Fast have ads?
Neither Fasting Well nor The Fast shows ads.
Which is updated more often, Fasting Well or The Fast?
Fasting Well ships an update every 3 months, and The Fast daily. Most recently, Fasting Well was updated on November 5, 2026 and The Fast on November 6, 2026.

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