# Sleep Tracker, AutoSleep vs Pæan Notes

Sleep Tracker, AutoSleep and Pæan Notes are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Sleep Tracker, AutoSleep | Pæan Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 4 MB | 6 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [yajing pang](https://appshunter.io/developer/1745831534) | [Shanghai Zero One Intelligence Ltd.](https://appshunter.io/developer/463264937) |

## What reviewers say

### Sleep Tracker, AutoSleep

[App page](https://appshunter.io/ios/app/sleep-tracker-autosleep/id6745084582)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pæan Notes

[App page](https://appshunter.io/ios/app/pan-notes/id6757691569)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Tracker, AutoSleep free?

Sleep Tracker, AutoSleep is free to download, with no in-app purchases.

### Is Pæan Notes free?

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

### Do Sleep Tracker, AutoSleep or Pæan Notes have ads?

Neither Sleep Tracker, AutoSleep nor Pæan Notes shows ads.

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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.*