# 마인드 부스터 Blue vs Echo Minute

The clearest difference is device support: Echo Minute at 3 against 마인드 부스터 Blue's —. On price, 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.

## The numbers

| Metric | 마인드 부스터 Blue | Echo Minute |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 15 months | — |
| Size | 72 MB | 28 MB |
| Requires iOS | 13 | **12.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Kyong Mee Chung](https://appshunter.io/developer/1441754708) | [JAE KWON PARK](https://appshunter.io/developer/1826443079) |

## What reviewers say

### 마인드 부스터 Blue

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

**In-app purchases:** none


### Echo Minute

[App page](https://appshunter.io/ios/app/echo-minute/id6748589175)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 마인드 부스터 Blue free?

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

### Is Echo Minute free?

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

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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.*