# KeyPlus2 vs 서울버스요

The clearest difference is iOS requirement: KeyPlus2 at 13.0 against 서울버스요's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

KeyPlus2 ships an update monthly, 서울버스요 every 6 weeks. The most recent releases landed on June 10, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | KeyPlus2 | 서울버스요 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 114 MB | 14 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Special One Co., Ltd.](https://appshunter.io/developer/1521605263) | [Dong Jun Kim](https://appshunter.io/developer/1818245166) |

## What reviewers say

### KeyPlus2

[App page](https://appshunter.io/ios/app/keyplus2-digital-key/id1583539390)

Easily control and share car doors using just your phone. Transform your vehicle into a smart car with this application.

**Highlights:** Digital car door control, Share car access remotely, Transform car into smart car, One phone control, Special life experience

**Features:** macOS Compatibility

**In-app purchases:** none


### 서울버스요

[App page](https://appshunter.io/ios/app/id6754226851)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KeyPlus2 free?

KeyPlus2 is free to download, with no in-app purchases.

### Is 서울버스요 free?

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

### Do KeyPlus2 or 서울버스요 have ads?

Neither KeyPlus2 nor 서울버스요 shows ads.

### Which is updated more often, KeyPlus2 or 서울버스요?

KeyPlus2 ships an update monthly, and 서울버스요 every 6 weeks. Most recently, KeyPlus2 was updated on June 10, 2026 and 서울버스요 on September 6, 2026.

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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.*