Fasting Tracker vs The Fast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Tracker
This app is a smart intermittent fasting companion that simplifies and guides users through various fasting plans. It offers a timer, AI-powered coaching, weight tracking with predictions, and detailed analytics to help users achieve their health goals.
- Smart fasting timer with zone tracking
- AI-powered personalized coaching
- Weight tracking and prediction
- Comprehensive fasting analytics
- Health milestone tracking
- Customizable fasting plans
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LeanFast makes intermittent fasting simple, honest, and sustainable. Start a fast in seconds, watch your body move through each metabolic stage, and see real progress — without guilt trips, dark patterns, or 20-question sign-ups. WHY LEANFAST • Start fasting in one tap — or log a fast you already started earlier • A clean fasting ring that turns green the moment you hit your goal • Backed by peer-reviewed research — every fasting stage cites its source • A daily Fasting Score that nudges you kindly, never grades you • Forgiving streaks: a rest day won't wipe out your progress KNOW EXACTLY WHERE YOU ARE • Live fasting stages — Fed, Fat Burn, Ketosis, Autophagy — explained in plain language • Your fast on the Lock Screen and in the Dynamic Island • An "Eating Window" card that tells you exactly when you can eat next • A goal-aware "Will this break my fast?" guide for coffee, cream, stevia and more BUILT-IN SUPPORT • Popular plans — 16:8, 18:6, 20:4, OMAD, and more • A fasting schedule with a reminder when it's time to start • Optional cycle- and menopause-aware guidance for women • Optional companion tips for people fasting while on GLP-1 medications • Water, weight and mood/energy tracking in one place — weigh-ins from a smart scale can come in automatically through Apple Health STAY MOTIVATED • Celebrate every completed fast with a shareable win card • See your progress in plain words — how far you've come since you started • Milestones and gentle reminders that keep you going AVAILABLE IN ENGLISH, SPANISH, PORTUGUESE, GERMAN, FRENCH AND ITALIAN FREE TO USE — HONEST BY DESIGN The fasting timer, stages, history, and core tracking are free. No ads. No hidden data collection. LeanFast Pro is an optional subscription that unlocks the smart AI coach, advanced analytics, weight predictions, and progress photos. Prices and renewal dates are shown up front — cancel anytime. Pro is offered as Monthly or Yearly. Payment is charged to your Apple ID at confirmation. Subscriptions auto-renew unless canceled at least 24 hours before the end of the period; manage or cancel in your Apple ID settings. Terms: https://vertexlabsolutions.com/leanfast/terms-of-service.html Privacy: https://vertexlabsolutions.com/leanfast/privacy-policy.html LeanFast provides general wellness and educational information only and is not medical advice. Consult your doctor before starting any fasting program, especially if you are pregnant, nursing, have a medical condition, an eating disorder, or take medication.
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.
- Customizable fasting timer
- Home screen widgets
- Live Activities support
- Fasting history calendar
- Shareable progress images
- Optional account for sync
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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
Verdict
The clearest difference is in-app purchases: The Fast at none against Fasting Tracker's 3. The Fast also leads on update cadence (daily vs every 5 weeks) and ratings volume (4 vs 1). On price, rating, ads and monetization model 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
Both are free to download. Fasting Tracker sells 3 in-app purchases, starting at $4.99 per 7 days. The Fast asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Fasting Tracker against 5.0 for The Fast. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
Fasting Tracker ships an update every 5 weeks, The Fast daily. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.
| Parameter | Fasting Tracker | The Fast |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 5 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 5 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Md HASAN | Prime Adventure LLC |
Customer experience
Fasting Tracker
The Fast
In-app purchases
Fasting Tracker
- LeanFast Pro$4.997 Days
- LeanFast Pro Monthly$9.991 Month
- LeanFast Pro7 Days trial$49.991 Year
The Fast
No in-app purchases









