Comparison

DoFast vs FastFast

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

Head to head
About

DoFast

Features
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Smart intermittent fasting tracker. Choose 16:8, 18:6, 20:4, OMAD or custom protocols. - Multiple fasting protocols - Metabolic phase tracking - Timer with eating window - Calendar heatmap - Statistics and streaks - Dark mode - English and Hebrew Not medical advice. Consult your doctor. Use at your own risk.

About

FastFast

Features
Read full description

FastFast - Fasting, Food & Steps Track calories, fast smarter, and hit your step goals - without ever opening the app. FastFast turns your three healthiest habits into one beautifully simple experience. No bloat. Just the tools you'll actually use, right where you'll see them: your Home Screen. YOUR HOME SCREEN, YOUR COACH Widgets are the whole idea. Pin your fasting timer, calorie ring, or daily step progress wherever you'll glance One tap to log a meal. One tap to scan a plate. One tap to check the timer. The fewer times you open the app, the better it's working. EVERYTHING YOU NEED. FREE. Calorie Tracking - log meals in seconds with a clean, fast form AI Food Scanner - snap a photo and let Apple Intelligence estimate the calories for you* 16:8 Fasting Timer - a beautiful ring that shows exactly where you are in your eating window Step Tracking - syncs with Apple Health and celebrates every milestone Gentle Reminders - get notified when your eating window opens and closes Calendar History - scroll back through any day, see your streaks build BUILT FOR iOS, BUILT FOR YOU Private by design - your data stays on your device Apple Health integration - your steps, automatically THE CATCH? THERE ISN'T ONE. The core experience - fasting, calorie logging, step tracking, widgets, reminders - is completely free. We mean it. Download FastFast. Build the habits. Watch them stick. *AI food scanning requires a device that supports Apple Intelligence on iOS 26 or later.

Screenshots

DoFast3 screens
FastFast4 screens

Verdict

The call

The clearest difference is iOS requirement: DoFast at 15.0 against FastFast's 26.0. On price, ads, in-app purchases and 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 5 level
DoFast versus FastFast: the parameters behind the verdict, then further details
ParameterDoFastFastFast
PriceFreeFree
Update frequencyEvery 2 monthsโ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better26.0
Further details โ€” not scored
Size8 MB13 MB
Age rating4+4+
DeveloperIgor LendermanParsa Nasirimehr

In-app purchases

None

DoFast

No in-app purchases

None

FastFast

No in-app purchases

Questions

Is DoFast free?
DoFast is free to download, with no in-app purchases.
Is FastFast free?
FastFast is free to download, with no in-app purchases.
Do DoFast or FastFast have ads?
Neither DoFast nor FastFast shows ads.

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