# 石クリ＠ vs Ravin

The clearest difference is in-app purchases: 石クリ＠ at none against Ravin's 2. 石クリ＠ also leads on iOS requirement (15.0 vs 18.6). Ravin's advantage is update cadence (every 3 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Ravin sells 2 in-app purchases, starting at $6.99 per month. 石クリ＠ asks for nothing beyond the download.

石クリ＠ ships an update every 8 months, Ravin every 3 days. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 石クリ＠ | Ravin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 days** |
| Size | 71 MB | 25 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Right Inc.](https://appshunter.io/developer/1067756338) | [骁 刘](https://appshunter.io/developer/1879015296) |

## What reviewers say

### 石クリ＠

[App page](https://appshunter.io/ios/app/id1112896870)

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

**In-app purchases:** none


### Ravin

[App page](https://appshunter.io/ios/app/ravin-ai-notes-diary-and-wiki/id6759511708)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ravin Pro monthly subscription | $6.99 | per month |
| Ravin Pro yearly subscription | $69.99 | per year |


## Frequently asked questions

### Is 石クリ＠ free?

石クリ＠ is free to download, with no in-app purchases.

### Is Ravin free?

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

### Do 石クリ＠ or Ravin have ads?

Neither 石クリ＠ nor Ravin shows ads.

### Which is updated more often, 石クリ＠ or Ravin?

石クリ＠ ships an update every 8 months, and Ravin every 3 days. Most recently, 石クリ＠ was updated on October 23, 2026 and Ravin on October 14, 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.*