# Gracy Diary vs SleepSats

The clearest difference is iOS requirement: SleepSats at 15.1 against Gracy Diary's 18.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Gracy Diary sells 1 one-off in-app purchase and SleepSats sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Gracy Diary ships an update weekly, SleepSats every 10 days. Both last shipped on October 9, 2026.

## The numbers

| Metric | Gracy Diary | SleepSats |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Size | 9 MB | 95 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Riccardo Valeriana](https://appshunter.io/developer/1482379299) | [Bula Media Ltd](https://appshunter.io/developer/1296621327) |

## What reviewers say

### Gracy Diary

[App page](https://appshunter.io/ios/app/gracy-diary/id6751147120)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gracy Diary Support | $1.99 | one-time |


### SleepSats

[App page](https://appshunter.io/ios/app/sleepsats/id6761456736)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sleepsats Monthly Pro | $7.99 | per month |
| Sleepsats Pro Yearly | $89.99 | per year |


## Frequently asked questions

### Is Gracy Diary free?

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

### Is SleepSats free?

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

### Do Gracy Diary or SleepSats have ads?

Neither Gracy Diary nor SleepSats shows ads.

### Which is updated more often, Gracy Diary or SleepSats?

Gracy Diary ships an update weekly, and SleepSats every 10 days. Most recently, Gracy Diary was updated on October 9, 2026 and SleepSats on October 9, 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.*