# 코베이옥션 vs 볼트비(boltB)

The clearest difference is update cadence: 볼트비(boltB) at every 3 days against 코베이옥션's every 7 months. 코베이옥션's advantage is iOS requirement (13.0 vs 15.1). 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.

코베이옥션 ships an update every 7 months, 볼트비(boltB) every 3 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 코베이옥션 | 볼트비(boltB) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Size | 5 MB | 144 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [(주)코베이옥션](https://appshunter.io/developer/1701909345) | [COREBOLT Co., Ltd.](https://appshunter.io/developer/1836334398) |

## What reviewers say

### 코베이옥션

[App page](https://appshunter.io/ios/app/id6459659404)

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

**In-app purchases:** none


### 볼트비(boltB)

[App page](https://appshunter.io/ios/app/boltb/id6751704015)

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

**In-app purchases:** none


## Frequently asked questions

### Is 코베이옥션 free?

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

### Is 볼트비(boltB) free?

볼트비(boltB) is free to download, with no in-app purchases.

### Do 코베이옥션 or 볼트비(boltB) have ads?

Neither 코베이옥션 nor 볼트비(boltB) shows ads.

### Which is updated more often, 코베이옥션 or 볼트비(boltB)?

코베이옥션 ships an update every 7 months, and 볼트비(boltB) every 3 days. Most recently, 코베이옥션 was updated on November 3, 2026 and 볼트비(boltB) 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.*