# AO vs Key Changer

The clearest difference is in-app purchases: Key Changer at none against AO's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AO sells 3 one-off in-app purchases. Key Changer asks for nothing beyond the download.

## The numbers

| Metric | AO | Key Changer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 13 MB | 6 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fujishima Tomokazu](https://appshunter.io/developer/1892404244) | [Joseph Ratterman](https://appshunter.io/developer/6777538376) |

## What reviewers say

### AO

[App page](https://appshunter.io/ios/app/ao-ringo-player/id6762004779)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee Support | $0.99 | one-time |
| Premium Coffee Support | $1.99 | one-time |
| Coffee & Cake Support | $3.99 | one-time |


### Key Changer

[App page](https://appshunter.io/ios/app/key-changer/id6780648386)

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

**In-app purchases:** none


## Frequently asked questions

### Is AO free?

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

### Is Key Changer free?

Key Changer is free to download, with no in-app purchases.

### Do AO or Key Changer have ads?

Neither AO nor Key Changer 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.*