Comparison

WaveFast vs FastLeaf

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

Head to head
About

WaveFast

Track your intermittent fasting with a visually engaging and user-friendly interface. This app offers a one-time purchase, no subscriptions, and prioritizes user privacy by storing all data locally. Stay motivated with fluid animations and smart notifications.

Highlights
  • Mesmerizing fluid wave animation
  • Dynamic Island & Live Activities integration
  • History and streak tracking
  • Customizable water themes
  • Body status insights
  • Smart notifications
  • Privacy-focused local data storage
Read full description

Reach your intermittent fasting goals with WaveFast, the most visually stunning and intuitive fasting tracker on the App Store. Say goodbye to bloated apps and expensive monthly subscriptions. WaveFast is built for one thing: tracking your fast with an elegant, fluid interface that makes reaching your goals satisfying and stress-free. Pay once, use forever. No accounts, no data tracking, no subscriptions. CORE FEATURES: 1、Mesmerizing Fluid Animation: Watch your progress rise like water. The calming wave animation reduces anxiety and keeps you motivated. 2、Dynamic Island & Live Activities: Never open the app just to check the time. Keep your fast visible on your Lock Screen and Dynamic Island. 3、History & Streak Tracking: Never lose your progress. WaveFast automatically saves your completed fasts so you can track your journey, view your longest fast, and build your streaks. 4、Custom Water Themes: Personalize your experience with stunning premium colors like Sakura Pink, Aurora Green, and Midnight Purple. 5、Body Status Insights: Know exactly what's happening inside your body—from fat burning to autophagy—based on real-time scientific milestones. 6、Smart Notifications: Get instantly notified when you reach the fat-burning zone and when your goal is achieved. 7、Privacy First: All your data stays locally on your device. We respect your privacy. Available fasting plans include 12h, 14h, 16h, 18h, and 20h. Whether you are a beginner or a seasoned faster doing OMAD, WaveFast is your perfect companion. Start your health journey today, beautifully. Terms of Use (EULA): 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

WaveFast4 screens
FastLeaf4 screens

Verdict

The call

The clearest difference is ads: WaveFast at none against FastLeaf's shown. FastLeaf's advantage is iOS requirement (15.0 vs 17.6). On price, update cadence, in-app purchases and device support 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. WaveFast sells 1 one-off in-app purchase and FastLeaf sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

WaveFast ships an update every 3 weeks, FastLeaf every 2 weeks. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 7 level
WaveFast versus FastLeaf: the parameters behind the verdict, then further details
ParameterWaveFastFastLeaf
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size20 MB96 MB
Age rating9+4+
Developer瑞华 张SEONYONG LEE

In-app purchases

1 purchases

WaveFast

One-time1
  • WaveFast Pro$4.99
1 purchases

FastLeaf

One-time1
  • FastLeaf Pro$2.99

Questions

Is WaveFast free?
WaveFast is free to download, with in-app purchases available.
Is FastLeaf free?
FastLeaf is free to download, with in-app purchases available.
Do WaveFast or FastLeaf have ads?
FastLeaf shows ads; WaveFast does not.
Which is updated more often, WaveFast or FastLeaf?
WaveFast ships an update every 3 weeks, and FastLeaf every 2 weeks. Most recently, WaveFast was updated on October 19, 2026 and FastLeaf on October 15, 2026.

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