EXTREME vs KeyPlus3
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
EXTREME
Read full descriptionHide full description
EXTREME-Car is a smart car lock appγ
KeyPlus3
Read full descriptionHide full description
Special Key KeyPlus provides customers with a unique experience. Creating a world where you can easily control and share car doors with just one phone, enabling a special life. The one thing that turns my car into a smart car is Special Key KeyPlus. YouTube Introduction Video: https://www.youtube.com/watch?v=rcryNcxolg8&t=2s Company Website: http://smartkeyplus.com/ Blog: https://blog.naver.com/sokeyplus
Screenshots
Verdict
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.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
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 November 6, 2026 and November 5, 2026 respectively.
| Parameter | EXTREME | KeyPlus3 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days β better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 6 MB | 32 MB |
| Age rating | 4+ | 17+ |
| Developer | ε€ε η¨ | Special One Co., Ltd. |
In-app purchases
EXTREME
No in-app purchases
KeyPlus3
No in-app purchases
