# Sleep Sounds vs FastKept

The clearest difference is ads: FastKept at none against Sleep Sounds's shown. FastKept also leads on update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Sleep Sounds sells 2 in-app purchases, starting at $2.99 per 7 days and FastKept sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sleep Sounds ships an update every 2 months, FastKept every 2 weeks. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Sleep Sounds | FastKept |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 277 MB | 17 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZEYNEP BERBER](https://appshunter.io/developer/1861310793) | [Timothy Hess](https://appshunter.io/developer/1853679268) |

## What reviewers say

### Sleep Sounds

[App page](https://appshunter.io/ios/app/sleep-sounds-snopy/id6761815274)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Snopy Pro Weekly | $2.99 | per 7 days |
| Snopy Pro Yearly | $24.99 | per year |


### FastKept

[App page](https://appshunter.io/ios/app/fastkept-fasting-tracker/id6814683683)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free Supporter Weekly | $0.99 | per 7 days |
| Ad-free Supporter Monthly | $2.99 | per month |
| Ad-free Supporter Yearly | $19.99 | per year |


## Frequently asked questions

### Is Sleep Sounds free?

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

### Is FastKept free?

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

### Do Sleep Sounds or FastKept have ads?

Sleep Sounds shows ads; FastKept does not.

### Which is updated more often, Sleep Sounds or FastKept?

Sleep Sounds ships an update every 2 months, and FastKept every 2 weeks. Most recently, Sleep Sounds was updated on October 28, 2026 and FastKept on October 29, 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.*