Sleep Guard vs WaveFast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sleep Guard
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Sleep Guard lets you precisely track your sleep while capturing important context - no Apple Watch required! Fall asleep when you need to using the guided breathing exercise. Get visual insights into your activity and synchronize your data with Apple Health. Export your sleep data as CSV. Start improving your well-being by ensuring you get the sleep you need, now!
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.
- 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
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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/
Screenshots
Verdict
The clearest difference is in-app purchases: Sleep Guard at none against WaveFast's 1. On price, update cadence, ads 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
Both are free to download. WaveFast sells 1 one-off in-app purchase. Sleep Guard asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 18, 2026 and October 3, 2026 respectively.
| Parameter | Sleep Guard | WaveFast |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 9+ |
| Developer | Joshua Pusch | 瑞华 张 |
In-app purchases
Sleep Guard
No in-app purchases
WaveFast
- WaveFast Pro$4.99
