# 실버벨 vs 마인드 부스터 Blue

The clearest difference is device support: 실버벨 at 2 against 마인드 부스터 Blue's —. On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

실버벨 ships an update every 16 months, 마인드 부스터 Blue every 15 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 실버벨 | 마인드 부스터 Blue |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 16 months | **Every 15 months** |
| Size | 10 MB | 72 MB |
| Requires iOS | 13.0 | 13 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 12+ |
| Developer | [SH DATA corp](https://appshunter.io/developer/1530513376) | [Kyong Mee Chung](https://appshunter.io/developer/1441754708) |

## What reviewers say

### 실버벨

[App page](https://appshunter.io/ios/app/id1530513374)

**Features:** macOS Compatibility

**In-app purchases:** none


### 마인드 부스터 Blue

[App page](https://appshunter.io/ios/app/blue/id1591909232)

**In-app purchases:** none


## Frequently asked questions

### Is 실버벨 free?

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

### Is 마인드 부스터 Blue free?

마인드 부스터 Blue is free to download, with no in-app purchases.

### Which is updated more often, 실버벨 or 마인드 부스터 Blue?

실버벨 ships an update every 16 months, and 마인드 부스터 Blue every 15 months. Most recently, 실버벨 was updated on November 3, 2026 and 마인드 부스터 Blue on November 7, 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.*