# Sleep Breathing Analysis vs Dawnlog

The clearest difference is in-app purchases: Sleep Breathing Analysis at none against Dawnlog's 1. Sleep Breathing Analysis also leads on iOS requirement (15.6 vs 18.0). Dawnlog's advantage is update cadence (weekly vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Dawnlog sells 1 one-off in-app purchase. Sleep Breathing Analysis asks for nothing beyond the download.

Sleep Breathing Analysis ships an update fortnightly, Dawnlog weekly. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sleep Breathing Analysis | Dawnlog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 2 MB | 2 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Synerter Corporation](https://appshunter.io/developer/1611116748) | [Nenad Jovic](https://appshunter.io/developer/6808178029) |

## What reviewers say

### Sleep Breathing Analysis

[App page](https://appshunter.io/ios/app/sleep-breathing-analysis/id6757699011)

**In-app purchases:** none


### Dawnlog

[App page](https://appshunter.io/ios/app/dawnlog-sleep-diary/id6820545909)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dawnlog Pro | $8.99 | one-time |


## Frequently asked questions

### Is Sleep Breathing Analysis free?

Sleep Breathing Analysis is free to download, with no in-app purchases.

### Is Dawnlog free?

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

### Do Sleep Breathing Analysis or Dawnlog have ads?

Neither Sleep Breathing Analysis nor Dawnlog shows ads.

### Which is updated more often, Sleep Breathing Analysis or Dawnlog?

Sleep Breathing Analysis ships an update fortnightly, and Dawnlog weekly. Most recently, Sleep Breathing Analysis was updated on November 9, 2026 and Dawnlog on November 6, 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.*