SleepSync vs SleepCalculator!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SleepSync
Optimize your sleep cycles to wake up feeling refreshed. This app calculates your ideal bedtime and wake-up time based on sleep science, offering insights into deep sleep and REM stages. Enjoy a user-friendly interface designed for a better night's rest.
- Personalized sleep schedule
- Deep sleep and REM analysis
- Intuitive sleep calculator
- Advanced sleep cycle tracking
- User-friendly interface
- Privacy focused
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Wake up feeling refreshed and rejuvenated every morning with SleepSync, your personal sleep calculator and bedtime scheduler. Designed to enhance your sleep quality by optimizing your sleep cycles, SleepSync ensures you fall asleep and wake up at the perfect times for maximum restfulness. Why SleepSync? Personalized Sleep Schedule: Discover your ideal bedtime and wake-up time based on scientific sleep cycle analysis, tailored specifically to your lifestyle. Deep Sleep and REM Analysis: Dive deep into your sleep patterns with advanced tracking of your deep sleep and REM cycles, enabling targeted improvements to your sleep quality. Features: Intuitive Sleep Calculator: Simply input your desired wake-up time to calculate the best times to go to sleep. Advanced Sleep Cycle Tracking: Leverage the power of sleep science to analyze your sleep phases and adjust your bedtime for optimal rest. User-Friendly Interface: Enjoy a seamless experience with SleepSync's elegant and easy-to-navigate design. Privacy First: Your sleep data belongs to you. SleepSync ensures your information is secure and never shared. Whether you're looking to improve your sleep quality, wake up more refreshed, or simply find the best time to go to bed, SleepSync is here to transform your nights and mornings. Start your journey towards better sleep and a more energetic day with SleepSync.
SleepCalculator!
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SleepCycle – Smart Bedtime & Wake-Up Calculator Struggling to wake up feeling refreshed? SleepCycle helps you calculate the ideal bedtime and wake-up time based on natural sleep cycles, so you can sleep better and wake smarter. Whether you’re a night owl or an early bird, SleepCycle makes it easy to plan your sleep with precision. Simply choose when you want to wake up or go to bed, and the app will show you the best times based on 90-minute sleep cycles. No more groggy mornings! Features: - Bedtime & Wake-Up Calculator – Get the best time to sleep or wake up. - Sleep Cycle Optimization – Based on natural REM cycles. - Smart Sleep Planning – Avoid waking mid-cycle and feel more rested. - Simple & Intuitive Design – Just tap, calculate, and sleep better. Perfect for: - Students planning study and sleep - Professionals optimizing work-life balance - Anyone wanting better sleep quality, focus, and energy Start sleeping smarter today with SleepCycle – your essential bedtime calculator and wake-up planner for a healthier routine. Privacy Policy: https://asktao.notion.site/Privacy-Policy-22f79099a2b680d4aac3ee6bc5f8bbc7 Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: SleepSync at none against SleepCalculator!'s 2. SleepCalculator!'s advantage is ads (none vs shown). On price, 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
Both are free to download. SleepCalculator! sells 2 in-app purchases, starting at $1.99 per 7 days. SleepSync asks for nothing beyond the download.
| Parameter | SleepSync | SleepCalculator! |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | APPS BAY LIMITED | 亮辉 赵 |
In-app purchases
SleepSync
No in-app purchases
SleepCalculator!
- Weekly$1.997 Days
- Monthly$3.991 Month









