Comparison

Intermittent Fasting Timer vs Fast

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

Head to head
About

Intermittent Fasting Timer

Track your fasting periods with a simple and intuitive timer. This app supports custom fasting windows, provides analytics, and allows manual entry or editing of past fasts. It also offers reminders and data export options.

Highlights
  • Custom fasting times
  • Fasting analytics
  • Manual fast entry
  • Data export to PDF
  • Simple timer
  • Reminders
  • Edit previous fasts
Features
Read full description

Serene Fasting tracker is the best app to track your fasts. It is good for window and intermittent fasting too. If you want to have the best tool to keep track of your fasts, this app is the right choice​. Serene supports: - Custom Fasting times - Analytics - Add fasts manually - Export data to PDF - Simple Timer - Reminders - Edit your previous fasts - Today Widget - Watch app This app optionally integrates with the Health App to track your weight. It is an opt-in feature that's accessible from the logs screen.

About

Fast

This app helps you track intermittent fasting routines, monitor progress, and analyze health data. It offers educational content, motivational challenges, and a journal to record your feelings. Connect with friends for support and motivation on your wellness journey.

Highlights
  • Fasting timer and tracker
  • Progress analytics and history
  • Educational 'Know It' section
  • Motivational challenges and trophies
  • Mood tracker and journal
  • Health app integration (steps)
  • Fasting buddy feature
Features
Read full description

Fast: Fasting Tracker & Timer helps you build consistent fasting habits with flexible fasting plans, body weight logging, water intake tracking, reminders, and detailed progress insights. Whether you're new to intermittent fasting or already following a routine, the app provides the tools to stay organized and work toward your personal health and wellness goals. Choose a fasting plan, customize your schedule, and track every fast in one place with an easy-to-use fasting tracker. FASTING PLANS Find a fasting schedule that works for your lifestyle. Choose from 12:12, 13:11, 14:10, 15:9, 16:8, 17:7, 18:6, 19:5, 20:4, 21:3, 22:2, 23:1, MWF, TTS, or create your own custom fasting plan. Whether you're starting intermittent fasting or maintaining an existing routine, you can choose a plan that suits your goals. FASTING TRACKER & TIMER Track active and completed fasts with an intuitive fasting tracker and timer. Review your fasting history and monitor your consistency over time. BODY WEIGHT & WATER TRACKING Log your body weight and monitor changes throughout your fasting routine. Track your daily water intake to stay hydrated and build healthier habits alongside your fasting schedule. SMART REMINDERS Stay on schedule with fasting reminders and water intake reminders. Customize notifications to help you start and end your fasting window on time while maintaining your daily hydration routine. ANALYTICS & HISTORY Review your fasting sessions, body weight, hydration logs, activity, and history with easy-to-understand analytics that help you monitor your progress and stay consistent. INFORMATIVE BLOGS Learn more about intermittent fasting through informative blogs covering healthy habits, wellness topics, and practical guidance to help you better understand your fasting routine. FASTING BUDDIES Stay motivated by fasting together. Invite friends, track each other's progress, and encourage one another throughout your fasting journey with the Buddy feature. ACTIVITY SUPPORT Sync your activity data to keep your fasting progress and daily activity organized in one place for a more complete overview of your routine. Whether you're following a 16:8 fasting schedule, exploring different intermittent fasting plans, or creating a custom fasting routine, Fast: Fasting Tracker & Timer gives you the tools to stay organized and build lasting healthy habits. DISCLAIMER This app is intended for informational and lifestyle purposes only and does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before starting any fasting routine, especially if you have an existing medical condition, are pregnant, or have specific dietary requirements. PRIVACY POLICY https://maximaapps.com/fasting/privacy_policy.html TERMS OF USE https://maximaapps.com/fasting/terms-of-use.html GET IN TOUCH Have questions, feedback, or suggestions? We'd love to hear from you. Contact us through the app or email us at feedback@maximaapps.com.

Screenshots

Intermittent Fasting Timer4 screens
Fast4 screens

Verdict

The call

Intermittent Fasting Timer and Fast both sit at 4.8 stars, but that hides the real split: 96% of Intermittent Fasting Timer's written reviews are positive against 75% of Fast's. Intermittent Fasting Timer also leads on iOS requirement (13.0 vs 18.6). Fast's advantage is ratings volume (3.3K vs 806). On price, rating, update cadence and ads 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. Intermittent Fasting Timer sells 1 one-off in-app purchase and Fast sells 8 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Intermittent Fasting Timer against 4.7 for Fast. Both are backed by a comparable volume of ratings — 806 and 3.3K respectively. Written reviews are what separate them: 96% of Intermittent Fasting Timer's written reviews are positive against 75% of Fast's.

UpkeepUpdate frequency

Intermittent Fasting Timer ships an update every 6 weeks, Fast every 2 months. Both last shipped on October 9, 2026.

Scorecard3 real differences · 7 level
Intermittent Fasting Timer versus Fast: the parameters behind the verdict, then further details
ParameterIntermittent Fasting TimerFast
PriceFreeFree
Rating4.8 (806 ratings) — better4.7 (3.3K ratings)
Positive reviews96.0% of reviews — better74.6% of reviews
Number of ratings8063.3K — better
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod, Apple WatchiPhone, iPad, Apple Watch
Requires iOS13.0 — better18.6
Further details — not scored
Size11 MB116 MB
Age rating4+12+
DeveloperTeleprompter LLCMaxima Apps

Customer experience

Intermittent Fasting Timer

All ratings806 ratings
Positive96.3%
Neutral2.2%
Negative1.5%
Written reviews325 reviews
Positive96.0%
Neutral2.5%
Negative1.5%

Fast

All ratings3,300 ratings
Positive91.8%
Neutral4.8%
Negative3.5%
Written reviews189 reviews
Positive74.6%
Neutral10.6%
Negative14.8%

User reviews

Intermittent Fasting Timer

From 806 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🚀 Straightforward fasting tracking
  • 💰 Completely free app
  • 🔒 No data collection or ads
  • 🔍 Minimalist and clean design

Room to improve

  • 🐛 Some issues with data/statistics display
  • 🔔 Lack of Apple Watch integration to start/stop fasts
  • 🕰️ Limited fasting duration (up to 72 hours)

Fast

From 3.3K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Helpful for weight loss
  • 👍 Motivating with trophies
  • 👍 Customizable fasting plans
  • 👍 Integrates with health apps

Room to improve

  • 🐛 Timer issues/inaccuracies
  • 🐛 Inability to edit fasting times
  • 🐛 Syncing/data saving problems
  • 🐛 Crashes and glitches
  • 🔍 Lacking advanced features

Bugs and requests

Intermittent Fasting Timer

Reported bugs

2 issues
  • Incorrect display of past weight data
  • Occasional app crashes or freezes

Requested features

3 requests
  • Add option to set custom fasting duration limits
  • Improve data/statistics display and organization
  • Implement Apple Watch integration to control fasting timer

Fast

Reported bugs

3 issues
  • Timer not accurately recording fasting times
  • Inability to update weight in app
  • Crashing when trying to view friend's status

Requested features

4 requests
  • Option to edit fasting start/end times
  • More detailed analytics and progress tracking
  • Improved syncing and data saving reliability
  • Expanded customization options

In-app purchases

1 purchases

Intermittent Fasting Timer

One-time1
  • Serene Pro ModeFree
8 purchases

Fast

Subscriptions6
  • Fast Premium Monthly$4.991 Month
  • Fasting Monthly$14.991 Month
  • Fasting Annually$19.991 Year
Show 3 more
  • Fasting Premium$27.993 Months
  • Fast Premium Yearly$29.991 Year
  • Fasting Premium Yearly$39.991 Year
One-time2
  • Fasting One Time Special Offer$19.99
  • Fasting Pro$49.99

Questions

Is Intermittent Fasting Timer free?
Intermittent Fasting Timer is free to download, with in-app purchases available.
Is Fast free?
Fast is free to download, with in-app purchases available.
Which has better reviews, Intermittent Fasting Timer or Fast?
Intermittent Fasting Timer is rated higher. Intermittent Fasting Timer averages 4.8 out of 5 from 806 ratings, while Fast averages 4.7 from 3.3K ratings.
Do Intermittent Fasting Timer or Fast have ads?
Neither Intermittent Fasting Timer nor Fast shows ads.
Which is updated more often, Intermittent Fasting Timer or Fast?
Intermittent Fasting Timer ships an update every 6 weeks, and Fast every 2 months. Most recently, Intermittent Fasting Timer was updated on October 9, 2026 and Fast on October 9, 2026.

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