Rhythm vs Fast Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Daily fasting tracker
- Flexible schedule support
- Weekly progress tracking
- Customizable fasting goals
- One-click start
- Progress monitoring
- Completion notifications
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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.
Fast Tracker
This app simplifies intermittent fasting by allowing users to set custom fasting and eating windows. It provides timely alerts and tracks weight progress, making it ideal for beginners. It helps manage your fasting schedule with ease.
- Customizable fast and eating windows
- Fasting and eating period timers
- Start and finish fasting alerts
- Weight tracking for progress
- Simple and easy to use interface
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FastTrack is the world's most simple and flexible fasting tracker. Perfect for those beginning intermittent fasting and looking for a place to start. Choose your fast length and the app will time your fasts and eating periods. - Simple and easy to use - Pick when to start fasting and eating periods - Alerts to remind you when to start and finish fasting - Weight tracking to view your progress over time This is the easiest fast tracker to use if you're just starting out fasting. Simply tell the app when you start and stop eating and it will automatically track your fasts, notifying you when you should begin and end fasting according to your schedule. Studies have shown that Intermittent fasting may help you burn fat, build muscle, reduce oxidative stress and inflammation, and prevent many diseases. Consult a doctor before beginning any new diet program. See terms of service here: https://www.appfactoryfitness.com/terms-of-service/fasttrack-terms-of-service
Screenshots
Verdict
The clearest difference is in-app purchases: Rhythm at none against Fast Tracker's 1. Fast Tracker's advantage is update cadence (monthly vs every 13 months). 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
Both are free to download. Fast Tracker sells 1 in-app purchase, starting at $2.99 per month. Rhythm asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Rhythm against 4.7 for Fast Tracker. Both are backed by a comparable volume of ratings — 454 and 430 respectively. Written reviews are what separate them: 89% of Rhythm's written reviews are positive against 86% of Fast Tracker's.
Rhythm ships an update every 13 months, Fast Tracker monthly. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.
| Parameter | Rhythm | Fast Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (454 ratings) | 4.7 (430 ratings) — better |
| Positive reviews | 88.5% of reviews — better | 85.7% of reviews |
| Number of ratings | 454 — better | 430 |
| Update frequency | Every 13 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 6 MB |
| Age rating | 12+ | 4+ |
| Developer | Bijan Cronin | App Factory, LLC |
Customer experience
Rhythm
Fast Tracker
User reviews
Rhythm
From 454 App Store ratingsWhat 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 Tracker
From 430 App Store ratingsWhat we love
- 👍 Simple and intuitive user interface
- ⏱️ Effective fasting and eating window tracking
- 💰 Completely free with no hidden charges
- 🔔 Helpful reminders and notifications
- 📊 Clear stats display on single screen
Room to improve
- 💸 Recent paywall implementation for core features
- ⏳ Limited to 23.5 hour maximum fast duration
- 📝 Unable to edit weight entries after initial save
- 🔐 Difficult account cancellation process
- ⚠️ Lacks extended fasting support (36+ hours)
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 Tracker
Reported bugs
4 issues- Weight input only accepts first 3 digits despite decimal point display
- Username validation prevents review submission
- Cannot retrieve fasting history without premium after update
- Unable to edit start time without paid subscription
Requested features
9 requests- Water intake tracking
- Extended fasting support (36+ hours, multi-day fasts)
- Calendar view for planning future fasts
- 30-minute pre-fast end notifications
- Ability to edit weight entries
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- Ability to edit fast start times
- Support for 5/2 fasts and quarterly fasting plans
- Decimal precision for weight tracking
- Diet and fasting tips/guidance
In-app purchases
Rhythm
No in-app purchases
Fast Tracker
- FastTrack Premium Access7 Days trial$2.991 Month
Questions
Is Rhythm free?
Is Fast Tracker free?
Which has better reviews, Rhythm or Fast Tracker?
Do Rhythm or Fast Tracker have ads?
Which is updated more often, Rhythm or Fast Tracker?
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