Comparison

Track Intermittent Fasting vs I Fast Different

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

Head to head
About

Track Intermittent Fasting

This app helps you manage intermittent fasting and track your health goals. It offers a smart timer with various fasting presets, integrates with Apple Health for weight and workout syncing, and provides detailed insights into your progress. Monitor your fasting and fitness journey with detailed charts and notifications.

Highlights
  • Smart fasting timer with 5 preset intervals
  • Dynamic Island and Live Activities for at-a-glance tracking
  • Apple Health integration for weight and workout sync
  • Detailed weight and body metric tracking
  • Over 70 workout types with cardio zone insights
  • iCloud backup and restore
  • Smart notifications for fasting phase transitions
Features
Read full description

FastFaster is your all-in-one companion for intermittent fasting, weight management, and fitness tracking. Combine a real-time fasting timer, weight metrics, cardio zones, workouts, recovery, and sleep tracking in one elegant, ad-free app. Whether you are starting with a standard 16:8 fast or tracking extended metabolic stages, FastFaster helps you understand your body’s biological phases at every step. Key Features: • SMART FASTING TIMER & PRESETS Track elapsed and remaining time with a visual progress ring and choose from 5 preset intervals for common fasting goals, including 16:8 and extended fasts. • DYNAMIC ISLAND & LIVE ACTIVITIES Monitor your fast at a glance! Track your progress directly from your Lock Screen or the Dynamic Island without opening the app. Visual battery indicators show your current biological phase in real-time. • APPLE HEALTH (HEALTHKIT) INTEGRATION FastFaster works seamlessly with Apple Health to provide a holistic view of your health progress: - Bidirectional Weight Sync: Log weight in the app or Apple Health, and see it sync instantly. Supported body metrics include body fat percentage, BMI, and lean body mass. - Bidirectional Workout Sync: Automatically import workouts recorded on your Apple Watch or other apps, and log workouts inside FastFaster to save them directly to Apple Health. • ENHANCED WEIGHT TRACKING & BODY METRICS Track your weight loss journey with gorgeous progress rings for weight and body fat goals. Visualize your progress with interactive Swift Charts across Weight, Body Fat, BMI, and Lean Mass views, with Week, Month, 6-Month, Yearly, and All-Time trends. Supports both Kilograms (kg) and Pounds (lb). • 70+ WORKOUT TYPES, CARDIO ZONES & ACTIVITY GOALS Log over 70 sports and activities—from HIIT, running, and cycling to yoga, swimming, and strength training. Track workout durations, active energy burned (calories), distance, and heart-rate/cardio zone insights when available from Apple Health. Set daily calorie and duration goals, and track your achievements with active rings. • HYDRATION TRACKING Log water and other beverages, set a daily goal, review totals, and sync counted fluid volume with Apple Health. Edit or remove entries while keeping records aligned. • SLEEP TRENDS & RECOVERY DASHBOARD Review sleep duration, naps, bedtime, wake time, sleep efficiency, and available Core, Deep, and REM stages from Apple Health. Browse history and trends without filling missing data. • STRESS & ENERGY CHECK-INS Record private stress and energy ratings with optional notes. When available, view a wellness stress estimate based on HRV and resting heart rate compared with your baseline. Estimates are not medical diagnoses. • SLEEP GOALS & WAKE ALARM Set a sleep goal, choose a wake time, preview sounds, and arm a wake alarm. The app identifies whether a system alarm or notification reminder is available. • ICLOUD BACKUP & RESTORE Keep your fasting, hydration, recovery, sleep, stress, workout, weight, and goal history protected with private iCloud backup and restore. Records sync across devices signed into the same Apple ID, with sync status available from the logs screen. • SMART NOTIFICATIONS Stay motivated with timely alerts when you transition to a new biological fasting phase, and notifications when your fasting goal is reached. • PERSONAL STATS & HISTORICAL LOGS Review your complete fasting history. Add, edit, or delete logs, and analyze statistics like current/longest streaks, average duration, and completion rates. FastFaster has a modern, privacy-first design. We do not sell your health data. Achieve your goals faster with FastFaster. Download now and start your journey!

About

I Fast Different

This app offers a unique intermittent fasting approach by alternating shorter and longer fasting periods. It provides a clear countdown, flexible control over your fasts, and detailed logs and statistics to help you track your progress. Designed for privacy, your data remains on your device.

Highlights
  • Alternating fast cycles
  • Live progress countdown ring
  • Flexible start and mid-fast control
  • Detailed logging and calendar view
  • Statistics and streak tracking
  • Customizable reminders
  • Apple Watch integration
Features
Read full description

Most intermittent fasting apps lock you into the same eating window every day. I Fast Different takes a different approach: it alternates a shorter fast and a longer fast on a repeating cycle — a style many people find easier to sustain than a fixed 16:8 or 18:6 schedule. Set your two durations once. The app alternates them automatically, keeps your schedule on track, and keeps a clear countdown front and center. FEATURES • Alternating cycle — define a shorter and a longer fast; the app alternates them and shows what's coming up next. • Live progress ring — a clean countdown to your target that keeps counting in overtime when you go past your goal. • Flexible start — fast by duration, or to a target end date and time. • Full control mid-fast — complete, cancel, adjust the length, edit the start time, or reset at any point. • Log and calendar — review every session in a list or month calendar, with completion percentage and notes; fix a past session's times if you forget to stop. • Statistics and streaks — monthly completion rate, total time fasted, average fast length, and your current and best day streak. • Reminders — optional chimes at the halfway point, every 25%, a set time before the end, or at completion. • Auto-schedule — optionally start and stop fasts automatically on the right days. • Apple Watch app and complication — start, stop, and adjust from your wrist, with a glanceable ring on your watch face. • Backup and restore — move all your data between devices with a simple export and import. • Private by design — your data stays on your device. No account, no sign-in, no tracking. I Fast Different is a tracking tool, not medical advice. Consult a healthcare professional before changing your eating patterns, especially if you have a medical condition.

Screenshots

Track Intermittent Fasting4 screens
I Fast Different4 screens

Verdict

The call

The clearest difference is device support: Track Intermittent Fasting at 5 against I Fast Different's 3. On price, rating, ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Track Intermittent Fasting against 5.0 for I Fast Different. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Scorecard1 real difference · 9 level
Track Intermittent Fasting versus I Fast Different: the parameters behind the verdict, then further details
ParameterTrack Intermittent FastingI Fast Different
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac, Apple Watch, Vision Pro — betteriPhone, iPad, Apple Watch
Requires iOS18.617.0 — better
Further details — not scored
Size41 MB6 MB
Age rating12+4+
DeveloperAnass DamriLeft To My Own Devices Computer Solutions

Customer experience

Track Intermittent Fasting

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

I Fast Different

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Track Intermittent Fasting

No in-app purchases

None

I Fast Different

No in-app purchases

Questions

Is Track Intermittent Fasting free?
Track Intermittent Fasting is free to download, with no in-app purchases.
Is I Fast Different free?
I Fast Different is free to download, with no in-app purchases.
Which has better reviews, Track Intermittent Fasting or I Fast Different?
Track Intermittent Fasting and I Fast Different are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Track Intermittent Fasting or I Fast Different have ads?
Neither Track Intermittent Fasting nor I Fast Different shows ads.

Other comparisons