Comparison

Intermittent Fasting vs FastLeaf

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

Head to head
About

Intermittent Fasting

Features
Read full description

Biwo makes intermittent fasting simple and fun. Track your fasting sessions with a beautiful circular timer, see your progress through different fasting phases, and build healthy habits effortlessly. Choose your fasting method: • 16:8 - The most popular method • 18:6 - For experienced fasters • 20:4 - Advanced fasting • OMAD (23:1) - One Meal A Day Features: • Beautiful circular timer with real-time progress • Scan meals for instant calorie & nutrition info • Fat burning & autophagy phase tracking • Complete fasting history • Day Streak tracker to keep you motivated • Start a fast in just one tap • Works completely offline - no account needed • Personalized onboarding Start your fasting journey today with Biwo! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

FastLeaf

Features
Read full description

FastLeaf makes intermittent fasting simple and easy to stick with. ■ Live Fasting Timer See exactly how long you've been fasting and how far you are from your goal. It stays accurate even if you close the app or restart your phone — elapsed time is based on your real start time. ■ Your Body, Stage by Stage Digestion → blood sugar → fat burning → ketosis → autophagy. See what stage your body is in right now and how long until the next one. ■ 6 Proven Protocols From 12:12 to 16:8, 18:6, 20:4 and OMAD (23:1). Pick the plan that fits you, beginner to advanced. ■ History & Streaks Log every fast and build your streak. A 15-week heatmap and session history make consistency visible. ■ Insights Average and longest fasts, goal completion rate and weekly trends — all in clear stats. ■ Reminders Get notified when you reach your goal and when your eating window ends. FastLeaf Pro (one-time lifetime purchase) · All protocols · Unlimited history · Full body-state timeline · Advanced stats · Home widget · No ads No subscription. Pay once, yours forever. Note: This app is for general wellness information and is not medical advice. Consult a professional if you are pregnant or have a condition such as diabetes.

Screenshots

Intermittent Fasting4 screens
FastLeaf4 screens

Verdict

The call

The clearest difference is ads: Intermittent Fasting at none against FastLeaf's shown. Intermittent Fasting also leads on update cadence (every 3 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement 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. Intermittent Fasting sells 3 in-app purchases, starting at $1.99 per 7 days and FastLeaf sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Intermittent Fasting ships an update every 3 days, FastLeaf every 2 weeks. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 4 level
Intermittent Fasting versus FastLeaf: the parameters behind the verdict, then further details
ParameterIntermittent FastingFastLeaf
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.0 — better
Further details — not scored
Size68 MB96 MB
Age rating4+4+
DeveloperSylvain FertonsSEONYONG LEE

In-app purchases

3 purchases

Intermittent Fasting

Subscriptions3
  • Biwo Pro Weekly$1.997 Days
  • Biwo Pro Monthly$4.991 Month
  • Biwo Pro Yearly$49.991 Year
1 purchases

FastLeaf

One-time1
  • FastLeaf Pro$2.99

Questions

Is Intermittent Fasting free?
Intermittent Fasting is free to download, with in-app purchases available.
Is FastLeaf free?
FastLeaf is free to download, with in-app purchases available.
Do Intermittent Fasting or FastLeaf have ads?
FastLeaf shows ads; Intermittent Fasting does not.
Which is updated more often, Intermittent Fasting or FastLeaf?
Intermittent Fasting ships an update every 3 days, and FastLeaf every 2 weeks. Most recently, Intermittent Fasting was updated on October 12, 2026 and FastLeaf on October 15, 2026.

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