# SleepBytes vs Slumbr

The clearest difference is in-app purchases: SleepBytes at none against Slumbr's 2. SleepBytes also leads on update cadence (every 3 months vs every 13 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Slumbr sells 2 in-app purchases, starting at $5.99 per month. SleepBytes asks for nothing beyond the download.

SleepBytes ships an update every 3 months, Slumbr every 13 months. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SleepBytes | Slumbr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/slumbr-sleep-analysis-and-score/id6749476659/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 13 months |
| Monetization | — | Freemium |
| Size | 66 MB | 25 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [SiliconeSignal Technologies](https://appshunter.io/developer/1559911870) | [Kazi Hossain](https://appshunter.io/developer/1827612256) |

## What reviewers say

### SleepBytes

[App page](https://appshunter.io/ios/app/sleepbytes/id1660749766)

**Features:** macOS Compatibility

**In-app purchases:** none


### Slumbr

[App page](https://appshunter.io/ios/app/slumbr-sleep-analysis-and-score/id6749476659)

This app analyzes your sleep data from Apple Health to provide detailed insights into your sleep patterns. It offers a daily Sleep Score, tracks sleep debt, and helps you understand metrics like sleep sufficiency, consistency, efficiency, and stress. Optimize your rest with advanced analysis and personalized recommendations.

**Highlights:** Advanced sleep stage analysis (Deep, REM, Core), Vital health metrics tracking (HRV, RHR, Respiratory Rate), Sleep debt tracker with actionable plans, Sleep consistency tracker, Smart bedtime calculator, Long-term trends and insights (Pro)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slumbr Pro Monthly | $5.99 | per month |
| Slumbr Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is SleepBytes free?

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

### Is Slumbr free?

Slumbr is free to download, with in-app purchases available.

### Do SleepBytes or Slumbr have ads?

Neither SleepBytes nor Slumbr shows ads.

### Which is updated more often, SleepBytes or Slumbr?

SleepBytes ships an update every 3 months, and Slumbr every 13 months. Most recently, SleepBytes was updated on October 18, 2026 and Slumbr on October 15, 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.*