Comparison

Fasting Timer by TrainerDay vs Just Fasting

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

Head to head
About

Fasting Timer by TrainerDay

This app simplifies intermittent fasting with a one-tap start and customizable durations. Track your progress visually and review your fasting history. It's designed for easy habit building without complex features.

Highlights
  • One-tap fast start
  • Customizable fasting durations
  • Flexible start times
  • Visual progress tracking
  • Fasting history
  • Shareable results
Features
Read full description

Fasting Timer is a simple, no-fuss intermittent fasting tracker designed to help you build healthy fasting habits. It's the ultimate app for ADF fasters. Each day when you start your fast. It's just one click, even when you forget to start it at your normal fasting time. Features: • One-tap start - Begin your fast instantly • Customizable durations - Set your preferred fasting window (12, 14, 16, 18, 20+ hours) • Flexible start times - Start now or schedule for later • Visual progress - See your fasting progress at a glance • History tracking - Review your completed fasts • Share your achievements - Export and share your fasting results Whether you're doing 16:8, 18:6, or any other intermittent fasting schedule, this app makes it easy to track your fasting windows without complicated setup or unnecessary features. Free and simple. Start fasting today.

About

Just Fasting

This app helps you track your fasting periods with a simple, uncluttered interface. Easily start custom fasts of varying lengths and monitor your progress with detailed statistics. It's designed to be unobtrusive and straightforward for your intermittent fasting journey.

Highlights
  • Customizable fast durations (hours and days)
  • One-tap start for common fasts
  • Visual countdown and progress arc
  • Detailed fasting statistics
  • Streak tracking
  • Remember last fast length
Features
Read full description

ust Fasting is built to stay out of your way. Open the app and start fasting—no clutter, no noise. Start fasts your way • 16-hour fast — one tap, last meal is now (adjust if you need to). • Custom fast — pick hours (1–72) or longer fasts in days (4+), with no upper limit on days in the picker. • Last meal time defaults to now but you can change it if you finished eating earlier. Stay oriented A large countdown and an arc show how far you’ve come through your fast. When you hit your goal, wrap up with a tap. See your progress Statistics include total fasts, total time fasted, average length, longest fast, current streak, and best streak. The app remembers your last fast length so starting the same routine again is quick.

Screenshots

Fasting Timer by TrainerDay4 screens
Just Fasting3 screens

Verdict

The call

The clearest difference is rating: Fasting Timer by TrainerDay at 4.9 against Just Fasting's 4.0. Fasting Timer by TrainerDay also leads on ratings volume (20 vs 1) and iOS requirement (15.1 vs 26.4). On price, ads, in-app purchases and monetization model 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

Fasting Timer by TrainerDay holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Fasting Timer by TrainerDay has 20 ratings behind it against 1, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Fasting Timer by TrainerDay versus Just Fasting: the parameters behind the verdict, then further details
ParameterFasting Timer by TrainerDayJust Fasting
PriceFreeFree
Rating4.9 (20 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings20 — better1
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.4
Further details — not scored
Size30 MB2 MB
Age rating17+4+
DeveloperTrainerDay IncMatthew Clark

In-app purchases

None

Fasting Timer by TrainerDay

No in-app purchases

None

Just Fasting

No in-app purchases

Questions

Is Fasting Timer by TrainerDay free?
Fasting Timer by TrainerDay is free to download, with no in-app purchases.
Is Just Fasting free?
Just Fasting is free to download, with no in-app purchases.
Which has better reviews, Fasting Timer by TrainerDay or Just Fasting?
Fasting Timer by TrainerDay is rated higher. Fasting Timer by TrainerDay averages 4.9 out of 5 from 20 ratings, while Just Fasting averages 4.0 from 1 ratings.
Do Fasting Timer by TrainerDay or Just Fasting have ads?
Neither Fasting Timer by TrainerDay nor Just Fasting shows ads.

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