Comparison

Fasting Tracker vs StayFasted

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

Head to head
About

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.

Highlights
  • Smart fasting timer with zone tracking
  • AI-powered personalized coaching
  • Weight tracking and prediction
  • Comprehensive fasting analytics
  • Health milestone tracking
  • Customizable fasting plans
Features
Read full description

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.

About

StayFasted

Features
Read full description

StayFasted is the fasting app that actually keeps you going. Most fasts don't end because of the plan. They end in one hard half hour. StayFasted is built around that half hour: a timer you can trust, a guide to what to expect, and a check-in that answers back. A TIMER FOR EVERY FAST 16:8 · 18:6 · 20:4 · One Meal a Day · 36h · 48h · 72h. One button starts it. Forgot to start? Move the start time in seconds. Your fast also shows on your Lock Screen, in the Dynamic Island, in widgets and on Apple Watch. KNOW WHAT TO EXPECT, HOUR BY HOUR For each part of a fast: what is generally understood, what people often feel, and what tends to help. Timing differs from person to person. General information, not medical advice. CHECK IN WHEN IT GETS HARD Mood, hunger and energy in a few taps. With Pro, an AI replies to what you wrote, how you feel and why you started. It runs on your iPhone, and it never pushes you to carry on. BREATHE Short breathing sessions for the moment a craving arrives, and a guided deep rest for when you need to lie down for ten minutes. On your phone and on your wrist. FLUIDS AND ELECTROLYTES Log water, coffee and tea in one tap. See whether you are keeping an even pace through the day. Electrolyte reminders for longer fasts. END IT WELL Stop whenever you choose. A refeed guide walks you back to food gently, from liquids to normal meals. SEE YOUR PATTERNS Insights in plain words from your own data, always honest about how much data they are based on. Progress photos on a timeline. A monthly report you can share with your doctor or coach. APPLE WATCH See your fast, start or end it, log water, check in and breathe. APPLE HEALTH Optional. Reads weight, steps, sleep, resting heart rate and active energy. Saves weight, water and mindful minutes. You choose what to share. YOUR FASTING DATA STAYS ON YOUR PHONE No account and no sign-up. Your fasts, check-ins, photos and notes are stored on your iPhone. Three optional features use the internet, only if you turn them on: weather, scanning a drink's barcode, and Apple Music playlists. FREE - Timer for every fasting length - The hour-by-hour guide - Check-ins, fluid tracking and the refeed guide - Two breathing sessions - Apple Watch, widgets and Live Activities - Your last 10 fasts and 7 days of charts PRO - AI replies on every check-in - All breathing sessions and deep rest - Full analytics and a monthly report with PDF - Unlimited history, journal, measurements and supplements - Rhythm planner, drink scanner, photo comparison - Health Labs scanner for InBody, DEXA and blood panels - CSV export Pro: $5.99 a month or $39.99 a year. Lifetime: $49.99, one payment. StayFasted gives general information about fasting and is not medical advice. Talk to your doctor before you start fasting, especially if you are pregnant, under 18, have diabetes or an eating disorder, or take medication. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdevstandard/ Privacy Policy: https://stayfasted.app/privacy

Screenshots

Fasting Tracker4 screens
StayFasted4 screens

Verdict

The call

Fasting Tracker and StayFasted are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Fasting Tracker sells 3 in-app purchases, starting at $4.99 per 7 days and StayFasted sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fasting Tracker ships an update every 5 weeks, StayFasted every 3 weeks. The most recent releases landed on November 9, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Fasting Tracker versus StayFasted: the parameters behind the verdict, then further details
ParameterFasting TrackerStayFasted
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.0 — better18.0
Further details — not scored
Size5 MB9 MB
Age rating4+4+
DeveloperMd HASANJason Duval

In-app purchases

3 purchases

Fasting Tracker

Subscriptions3
  • LeanFast Pro$4.997 Days
  • LeanFast Pro Monthly$9.991 Month
  • LeanFast Pro7 Days trial$49.991 Year
3 purchases

StayFasted

Subscriptions2
  • Pro Monthly$5.991 Month
  • Pro Annual$39.991 Year
One-time1
  • Lifetime Access$49.99

Questions

Is Fasting Tracker free?
Fasting Tracker is free to download, with in-app purchases available.
Is StayFasted free?
StayFasted is free to download, with in-app purchases available.
Do Fasting Tracker or StayFasted have ads?
Neither Fasting Tracker nor StayFasted shows ads.
Which is updated more often, Fasting Tracker or StayFasted?
Fasting Tracker ships an update every 5 weeks, and StayFasted every 3 weeks. Most recently, Fasting Tracker was updated on November 9, 2026 and StayFasted on October 28, 2026.

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