# Sleep Arc vs OpenSleep

The clearest difference is update cadence: Sleep Arc at every 2 days against OpenSleep's every 2 weeks. Sleep Arc also leads on iOS requirement (18.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sleep Arc sells 2 in-app purchases, starting at $5.99 per month and OpenSleep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sleep Arc ships an update every 2 days, OpenSleep every 2 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Sleep Arc | OpenSleep |
| --- | --- | --- |
| 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 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 58 MB |
| Requires iOS | **18.1** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Matheus Mello](https://appshunter.io/developer/1479587249) | [Yuan Qian](https://appshunter.io/developer/1894474763) |

## What reviewers say

### Sleep Arc

[App page](https://appshunter.io/ios/app/sleep-arc/id6762565615)

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

**In-app purchases (2)**

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


### 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 |


## Frequently asked questions

### Is Sleep Arc free?

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

### Is OpenSleep free?

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

### Do Sleep Arc or OpenSleep have ads?

Neither Sleep Arc nor OpenSleep shows ads.

### Which is updated more often, Sleep Arc or OpenSleep?

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