# 스마트키 vs 루플 (Roupll)

The clearest difference is in-app purchases: 스마트키 at none against 루플 (Roupll)'s 1. 스마트키 also leads on iOS requirement (14.0 vs 17.6). 루플 (Roupll)'s advantage is update cadence (every 3 days vs every 10 days). On price, ads and device support there is nothing between them.

Both are free to download. 루플 (Roupll) sells 1 one-off in-app purchase. 스마트키 asks for nothing beyond the download.

스마트키 ships an update every 10 days, 루플 (Roupll) every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | 스마트키 | 루플 (Roupll) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Size | 38 MB | 51 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [(주)블루앤](https://appshunter.io/developer/1252529871) | [Reborn solution Inc.](https://appshunter.io/developer/1799917469) |

## What reviewers say

### 스마트키

[App page](https://appshunter.io/ios/app/id6462978746)

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

**In-app purchases:** none


### 루플 (Roupll)

[App page](https://appshunter.io/ios/app/roupll/id6742780362)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 신규 앨범 슬롯 1개 | $0.99 | one-time |


## Frequently asked questions

### Is 스마트키 free?

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

### Is 루플 (Roupll) free?

루플 (Roupll) is free to download, with in-app purchases available.

### Do 스마트키 or 루플 (Roupll) have ads?

Neither 스마트키 nor 루플 (Roupll) shows ads.

### Which is updated more often, 스마트키 or 루플 (Roupll)?

스마트키 ships an update every 10 days, and 루플 (Roupll) every 3 days. Most recently, 스마트키 was updated on October 24, 2026 and 루플 (Roupll) on October 24, 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.*