# Sleep Arc vs Dozer

The clearest difference is update cadence: Sleep Arc at every 2 days against Dozer's fortnightly. Dozer's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Sleep Arc sells 2 in-app purchases, starting at $5.99 per month and Dozer 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, Dozer fortnightly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Sleep Arc | Dozer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 25 MB | 17 MB |
| Requires iOS | 18.1 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Matheus Mello](https://appshunter.io/developer/1479587249) | [Adrian Nicolaysen](https://appshunter.io/developer/1887756605) |

## 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 |


### Dozer

[App page](https://appshunter.io/ios/app/dozer-sleep-tracker/id6790656632)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dozer+ | $14.99 | one-time |


## Frequently asked questions

### Is Sleep Arc free?

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

### Is Dozer free?

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

### Do Sleep Arc or Dozer have ads?

Neither Sleep Arc nor Dozer shows ads.

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

Sleep Arc ships an update every 2 days, and Dozer fortnightly. Most recently, Sleep Arc was updated on September 30, 2026 and Dozer on October 1, 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.*