# EXTREME vs KeyPlus3

The clearest difference is update cadence: EXTREME at every 6 days against KeyPlus3's every 2 weeks. EXTREME also leads on iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EXTREME ships an update every 6 days, KeyPlus3 every 2 weeks. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | EXTREME | KeyPlus3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Size | 6 MB | 35 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [凤军 程](https://appshunter.io/developer/873913814) | [Special One Co., Ltd.](https://appshunter.io/developer/1521605263) |

## What reviewers say

### EXTREME

[App page](https://appshunter.io/ios/app/extreme-car/id1457305893)

**Features:** macOS Compatibility

**In-app purchases:** none


### KeyPlus3

[App page](https://appshunter.io/ios/app/keyplus3-digital-key/id6747149011)

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

**In-app purchases:** none


## Frequently asked questions

### Is EXTREME free?

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

### Is KeyPlus3 free?

KeyPlus3 is free to download, with no in-app purchases.

### Do EXTREME or KeyPlus3 have ads?

Neither EXTREME nor KeyPlus3 shows ads.

### Which is updated more often, EXTREME or KeyPlus3?

EXTREME ships an update every 6 days, and KeyPlus3 every 2 weeks. Most recently, EXTREME was updated on October 14, 2026 and KeyPlus3 on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*