# OpenSleep vs SleepKit

The clearest difference is update cadence: SleepKit at every 4 days against OpenSleep's every 2 weeks. SleepKit also leads on iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OpenSleep sells 1 one-off in-app purchase and SleepKit sells 3 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.

OpenSleep ships an update every 2 weeks, SleepKit every 4 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | OpenSleep | SleepKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opensleep-sleep-tracker-and-ai/id6775201826/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 58 MB | 146 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Yuan Qian](https://appshunter.io/developer/1894474763) | [Cengiz Darian Hanci](https://appshunter.io/developer/1878103848) |

## What reviewers say

### OpenSleep

[App page](https://appshunter.io/ios/app/opensleep-sleep-tracker-and-ai/id6775201826)

This app offers a privacy-focused, offline sleep tracker and AI coach. It analyzes your sleep patterns locally on your device, synchronizes with Apple Health, and provides detailed insights without sending any data to servers.

**Highlights:** Offline sleep tracking, Local AI sleep coach, Apple Health synchronization, Sleep cycle and stage analysis, Privacy-first, serverless design, Detailed sleep history

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenSleep Lifetime Premium | $2.99 | one-time |


### SleepKit

[App page](https://appshunter.io/ios/app/sleepkit-sleep-score-tracker/id6777959375)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SleepKit Premium Monthly | $2.49 | per month |
| SleepKit Premium Yearly | $17.99 | per year |
| SleepKit Premium Lifetime | $37.99 | one-time |


## Frequently asked questions

### Is OpenSleep free?

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

### Is SleepKit free?

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

### Do OpenSleep or SleepKit have ads?

Neither OpenSleep nor SleepKit shows ads.

### Which is updated more often, OpenSleep or SleepKit?

OpenSleep ships an update every 2 weeks, and SleepKit every 4 days. Most recently, OpenSleep was updated on November 5, 2026 and SleepKit on November 10, 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.*