# K vs E10 Fuel Compatibility Check

The clearest difference is in-app purchases: K at none against E10 Fuel Compatibility Check's 3. K also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support 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. K asks for nothing beyond the download.

## The numbers

| Metric | K | E10 Fuel Compatibility Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | — |
| Size | 230 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Guangdong KSTE lighting industry Co.,Ltd](https://appshunter.io/developer/1604704962) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-smart/id1604704960)

**Features:** macOS Compatibility

**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 K free?

K 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 K or E10 Fuel Compatibility Check have ads?

Neither K 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.*