Comparison

Rhythm vs Fast

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

Head to head
About

Rhythm

This app simplifies intermittent fasting with a daily tracker. It supports various fasting schedules, from beginner-friendly to advanced, and helps users monitor their progress over time. Get notifications when your fast is complete.

Highlights
  • Daily fasting tracker
  • Flexible schedule support
  • Weekly progress tracking
  • Customizable fasting goals
  • One-click start
  • Progress monitoring
  • Completion notifications
Features
Read full description

Rhythm is a simple intermittent fasting tracker for people who want a clean fast timer without the bloat. No account. No ads. Just a focused way to start a fast, stay on track, and review your history when you're done. Choose any fasting goal from 7 to 24 hours, including popular rhythms like 16:8 and 18:6. Start a fast in seconds, follow your progress live, and switch between countdown and elapsed timer views. Rhythm helps you stay consistent with: - flexible fasting goals - multiple fasts in the same day - reminder and completion notifications - editable fasting history - weekly progress insights If you want a fasting app that feels simple, respectful, and easy to trust, Rhythm gives you the essentials and gets out of your way.

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

Rhythm4 screens
Fast4 screens

Verdict

The call

The clearest difference is in-app purchases: Rhythm at none against Fast's 8. Rhythm also leads on review sentiment (89% vs 75%). Fast's advantage is update cadence (every 2 months vs every 13 months) and ratings volume (3.3K vs 454). On price, rating, ads and device support 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. Fast sells 8 in-app purchases, starting at $4.99 per month. Rhythm asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Rhythm against 4.7 for Fast. That said, the two scores are not equally well evidenced: Fast has 3.3K ratings behind it against 454, so its average is the more settled of the two. Written reviews are what separate them: 89% of Rhythm's written reviews are positive against 75% of Fast's.

UpkeepUpdate frequency

Rhythm ships an update every 13 months, Fast every 2 months. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
Rhythm versus Fast: the parameters behind the verdict, then further details
ParameterRhythmFast
PriceFreeFree
Rating4.7 (454 ratings)4.7 (3.3K ratings) — better
Positive reviews88.5% of reviews — better74.6% of reviews
Number of ratings4543.3K — better
Update frequencyEvery 13 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS17.6 — better18.6
Further details — not scored
Size3 MB116 MB
Age rating12+12+
DeveloperBijan CroninMaxima Apps

Customer experience

Rhythm

All ratings444 ratings
Positive91.9%
Neutral3.8%
Negative4.3%
Written reviews235 reviews
Positive88.5%
Neutral6.0%
Negative5.5%

Fast

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

User reviews

Rhythm

From 454 App Store ratings

What we love

  • 💎 Simple and easy to use
  • 🆓 Free app with no ads or subscriptions
  • ⏱️ Straightforward fasting timer
  • 📊 Tracks fasting progress
  • 🔍 Allows editing of start/end times

Room to improve

  • ⏰ Can't track fasts longer than 24 hours
  • 📅 Limited history view (only past week)
  • 🔔 Lacks customizable notifications/reminders

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

Rhythm

Reported bugs

2 issues
  • Can't add past fasts
  • Inconsistent weekly progress tracking

Requested features

5 requests
  • Ability to track longer fasts (e.g., 48-72 hours)
  • Option to view fasting history beyond the past week
  • Customizable notifications and reminders
  • Integration with health/fitness tracking apps
  • Weight tracking and progress visualization

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

None

Rhythm

No in-app purchases

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 Rhythm free?
Rhythm is free to download, with no in-app purchases.
Is Fast free?
Fast is free to download, with in-app purchases available.
Which has better reviews, Rhythm or Fast?
Fast is rated higher. Rhythm averages 4.7 out of 5 from 454 ratings, while Fast averages 4.7 from 3.3K ratings.
Do Rhythm or Fast have ads?
Neither Rhythm nor Fast shows ads.
Which is updated more often, Rhythm or Fast?
Rhythm ships an update every 13 months, and Fast every 2 months. Most recently, Rhythm was updated on October 8, 2026 and Fast on October 9, 2026.

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