# 마인드부스터 Green vs Untwist

The clearest difference is in-app purchases: 마인드부스터 Green at none against Untwist's 2. 마인드부스터 Green also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Untwist sells 2 in-app purchases, starting at $4.99 per month. 마인드부스터 Green asks for nothing beyond the download.

마인드부스터 Green ships an update weekly, Untwist every 8 days. The most recent releases landed on October 27, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | 마인드부스터 Green | Untwist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Size | 3 MB | 28 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Kyong Mee Chung](https://appshunter.io/developer/1441754708) | [Osman Seven](https://appshunter.io/developer/1875631963) |

## What reviewers say

### 마인드부스터 Green

[App page](https://appshunter.io/ios/app/green/id6670236046)

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

**In-app purchases:** none


### Untwist

[App page](https://appshunter.io/ios/app/untwist-overthinking-journal/id6759801461)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is 마인드부스터 Green free?

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

### Is Untwist free?

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

### Do 마인드부스터 Green or Untwist have ads?

Neither 마인드부스터 Green nor Untwist shows ads.

### Which is updated more often, 마인드부스터 Green or Untwist?

마인드부스터 Green ships an update weekly, and Untwist every 8 days. Most recently, 마인드부스터 Green was updated on October 27, 2026 and Untwist on November 9, 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.*