# UniChange vs E10 Fuel Compatibility Check

The clearest difference is in-app purchases: UniChange at none against E10 Fuel Compatibility Check's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. E10 Fuel Compatibility Check sells 3 in-app purchases, starting at $2.99 per 7 days. UniChange asks for nothing beyond the download.

## The numbers

| Metric | UniChange | E10 Fuel Compatibility Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 5 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HIROKI NAKASU](https://appshunter.io/developer/1882764045) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### UniChange

[App page](https://appshunter.io/ios/app/unichange/id6760125578)

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

**In-app purchases:** none


### E10 Fuel Compatibility Check

[App page](https://appshunter.io/ios/app/e10-fuel-compatibility-check/id6779277548)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octane Ratings – Weekly | $2.99 | per 7 days |
| Engine Safety – Yearly | $14.99 | per year |
| Gasoline Guide, Pay Once | $29.99 | one-time |


## Frequently asked questions

### Is UniChange free?

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

### Is E10 Fuel Compatibility Check free?

E10 Fuel Compatibility Check is free to download, with in-app purchases available.

### Do UniChange or E10 Fuel Compatibility Check have ads?

Neither UniChange nor E10 Fuel Compatibility Check 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.*