# Sleepace vs Sleep Cycle Bedtime Calculator

The clearest difference is review sentiment: Sleep Cycle Bedtime Calculator at 80% against Sleepace's 21%. Sleep Cycle Bedtime Calculator also leads on rating (4.1 vs 1.9) and ratings volume (306 vs 29). Sleepace's advantage is in-app purchases (none vs 4) and iOS requirement (7.1 vs 18.0). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Sleep Cycle Bedtime Calculator sells 3 in-app purchases, starting at $4.99 per year. Sleepace asks for nothing beyond the download.

Sleep Cycle Bedtime Calculator holds the better App Store score, 4.1 against 1.9. That said, the two scores are not equally well evidenced: Sleep Cycle Bedtime Calculator has 306 ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 21% of Sleepace's written reviews are positive against 80% of Sleep Cycle Bedtime Calculator's.

Sleepace ships an update every 2 months, Sleep Cycle Bedtime Calculator every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sleepace | Sleep Cycle Bedtime Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (29 ratings)](https://appshunter.io/ios/app/sleepace/id928761013/reviews) | **[4.1 (306 ratings)](https://appshunter.io/ios/app/sleep-cycle-bedtime-calculator/id1668639153/reviews)** |
| Number of ratings | 29 | **306** |
| Positive reviews | 20.9% of reviews | **80.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 59 MB | 35 MB |
| Requires iOS | **7.1** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Medica Technology Development Co., Ltd.](https://appshunter.io/developer/928761012) | [Kai Oelfke](https://appshunter.io/developer/644779478) |

## What reviewers say

### Sleepace

[App page](https://appshunter.io/ios/app/sleepace/id928761013)

This app monitors your sleep patterns, offering professional suggestions to improve sleep quality and build healthy habits. It also provides ambient light and music to help you fall asleep faster and a smart alarm to wake you at the optimal time.

**Highlights:** Accurate sleep monitoring, Professional sleep suggestions, Ambient light and music sleep aid, Smart alarm for optimal wake-up, Apple Health integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Sleep Cycle Bedtime Calculator

[App page](https://appshunter.io/ios/app/sleep-cycle-bedtime-calculator/id1668639153)

This app helps you determine optimal wake-up and bedtime based on sleep cycles. It calculates ideal times to go to sleep and wake up to feel more refreshed, considering the average 90-minute sleep cycle duration. You can also customize your estimated time to fall asleep.

**Highlights:** Calculate optimal wake-up times, Calculate optimal bedtime, Based on 90-minute sleep cycles, Supports 5-6 sleep cycles, Customizable fall asleep time, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SleepCalc Pro Yearly | $4.99 | per year |
| SleepCalc Pro Yearly | $4.99 | per year |
| SleepCalc Pro | $9.99 | one-time |

**What reviewers like**

- 🆓 Completely free with no ads or data collection
- 👍 Simple and intuitive user interface
- 🎯 Accurate sleep cycle calculations based on 90-minute cycles
- ⚡ Quick and easy to use
- 📊 Shows multiple sleep time options and highlights best choices

**What reviewers complain about**

- 😕 Confusing interface for some users
- 🐛 Unresponsive touch controls reported
- 📉 Lacks visual graphs and data visualization
- ❌ No detailed sleep analysis or insights
- 🔄 Settings reset when app is closed

**Reported bugs**

- Touch screen unresponsive
- App settings reset upon closing
- Alarm goes off at unintended times
- Skips certain time slots in calculations
- Confusing icon similarity with Apple Watch app

**Requested features**

- Add graphs and visual data representations
- Integrate with Apple Health or Fitbit data
- Display number of sleep cycles achieved
- Built-in alarm functionality
- Persist settings when closing app


## Frequently asked questions

### Is Sleepace free?

Sleepace is free to download, with no in-app purchases.

### Is Sleep Cycle Bedtime Calculator free?

Sleep Cycle Bedtime Calculator is free to download, with in-app purchases available.

### Which has better reviews, Sleepace or Sleep Cycle Bedtime Calculator?

Sleep Cycle Bedtime Calculator is rated higher. Sleepace averages 1.9 out of 5 from 29 ratings, while Sleep Cycle Bedtime Calculator averages 4.1 from 306 ratings.

### Do Sleepace or Sleep Cycle Bedtime Calculator have ads?

Neither Sleepace nor Sleep Cycle Bedtime Calculator shows ads.

### Which is updated more often, Sleepace or Sleep Cycle Bedtime Calculator?

Sleepace ships an update every 2 months, and Sleep Cycle Bedtime Calculator every 3 months. Most recently, Sleepace was updated on November 1, 2026 and Sleep Cycle Bedtime Calculator on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*