# 부키 vs RosaKnock

The clearest difference is in-app purchases: 부키 at none against RosaKnock's 1. 부키 also leads on iOS requirement (16.2 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RosaKnock sells 1 one-off in-app purchase. 부키 asks for nothing beyond the download.

부키 ships an update every 2 days, RosaKnock every 3 days. The most recent releases landed on October 19, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 부키 | RosaKnock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Size | 76 MB | 114 MB |
| Requires iOS | **16.2** | 26.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Juhwa Lee](https://appshunter.io/developer/1634394241) | [Rosemary Solutions](https://appshunter.io/developer/1815144760) |

## What reviewers say

### 부키

[App page](https://appshunter.io/ios/app/id6478649071)

**Features:** macOS Compatibility

**In-app purchases:** none


### RosaKnock

[App page](https://appshunter.io/ios/app/rosaknock-focus-and-adhd-timer/id6758372304)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $2.99 | one-time |


## Frequently asked questions

### Is 부키 free?

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

### Is RosaKnock free?

RosaKnock is free to download, with in-app purchases available.

### Do 부키 or RosaKnock have ads?

Neither 부키 nor RosaKnock shows ads.

### Which is updated more often, 부키 or RosaKnock?

부키 ships an update every 2 days, and RosaKnock every 3 days. Most recently, 부키 was updated on October 19, 2026 and RosaKnock on October 28, 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.*