Rhythm Fasting vs FastJoy
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Rhythm Fasting
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Rhythm Fasting is your smart, minimalist intermittent fasting companion. Start a fast with a single tap, follow your daily eating window, and build a healthy rhythm that actually sticks โ no clutter, no ads, just the tools you need. Whether you're new to fasting or a seasoned faster, Rhythm Fasting adapts to you. Choose a plan like 16:8, 18:6, 20:4, or OMAD, set your weekly schedule, and let the timer and reminders keep you on track. WHY YOU'LL LOVE IT โข One-tap fasting timer with a live countdown โข Clean, distraction-free design โ completely ad-free โข Works in 10 languages โข Your data stays yours, synced privately to your Apple account FASTING MADE SIMPLE โข Popular plans built in: 16:8, 18:6, 20:4, OMAD, and more โข Set a custom eating window for each day of the week โข See your current phase, countdown, and a 24-hour timeline at a glance โข Live Activity and a Home Screen widget keep your timer one glance away โข Smart reminders for when it's time to fast or eat TRACK YOUR PROGRESS โข Log your weight and watch your trend toward your goal โข Track body measurements โ chest, waist, hips, and more โข Water intake tracking with a daily hydration goal โข Detailed reports: streaks, success rate, longest fast, and history โข Celebrate streak milestones as you stay consistent STAY MOTIVATED โข Helpful tips during fasting and eating windows โข A weekly summary of how your fasting week went โข Gentle nudges so you never lose your streak PRIVATE & YOURS โข Sync with your Apple Account and back up to iCloud Drive โข Export your data to CSV anytime โข No accounts, no tracking, no ads RHYTHM FASTING PRO Upgrade to Pro to unlock advanced fasting plans, body-measurement tracking, detailed analytics, custom weekly scheduling, and smart daily reminders. The core timer and tracking stay free, forever. Build your rhythm. Feel the difference. Download Rhythm Fasting today. -- Intermittent fasting is a lifestyle choice and not medical advice. Consult a healthcare professional before starting any fasting or weight-loss program, especially if you are pregnant, nursing, or have a medical condition.
FastJoy
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FastJoy is the simple, private way to track intermittent fasting. Pick a protocol, start the timer, and watch your fasting and eating windows in real time โ no account, no paywall on the core timer, and everything stays on your device. WHY FASTWINDOW - Beautiful animated fasting timer with live elapsed time and progress ring - Choose 16:8, 18:6, 20:4, OMAD or a custom fasting window - Informational fasting stages as the hours add up (fat burning, ketosis, autophagy zone) - Current streak, today's eating window and target end time at a glance - Edit your start time anytime โ perfect when you forget to hit start TRACK EVERYTHING - Full history of every fast with met-goal status - GitHub-style consistency heatmap of your fasting days - Weekly fasting hours and calendar overview STATS & PROGRESS - Average fast length, longest fast, completion rate and streaks - Fast-duration trend chart and this-week-vs-last comparison - Patterns by weekday and start time of day - Optional weight log with a clean trend chart - Dozens of achievements to keep you motivated REMINDERS THAT HELP - Get notified the moment your fasting goal is reached - Optional "time to start fasting" and hydration reminders - 100% local notifications โ no servers, no tracking of your habits PRIVATE BY DESIGN - No sign-up, works fully offline - Optional Face ID / Touch ID lock - Export and import your data as JSON anytime - Available in English, Spanish, French, Italian, German and Portuguese FastJoy is a tracking aid only and does not provide medical or nutritional advice. Intermittent fasting is not suitable for everyone, including during pregnancy or with certain medical conditions. Consult a qualified healthcare professional before changing your eating patterns. Start your first fast today and build a routine that lasts.
Screenshots
Verdict
The clearest difference is price: FastJoy at Free against Rhythm Fasting's $9.99. FastJoy also leads on in-app purchases (none vs 3) and iOS requirement (13.0 vs 17.6). Rhythm Fasting's advantage is ads (none vs shown). On device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
FastJoy is free to download; Rhythm Fasting costs $9.99 up front. Rhythm Fasting sells 3 one-off in-app purchases. FastJoy asks for nothing beyond the download.
| Parameter | Rhythm Fasting | FastJoy |
|---|---|---|
| Price | $9.99 | Free โ better |
| Update frequency | Every 3 days | โ |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 17.6 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 36 MB | 41 MB |
| Age rating | 4+ | 12+ |
| Developer | Piyush Ahuja | Ferran Espuna |
In-app purchases
Rhythm Fasting
- Small Tip$0.99
- Helping developer$4.99
- Amazing Tip$9.99
FastJoy
No in-app purchases









