# Mind Vision vs Calvin Chess Trainer

The clearest difference is iOS requirement: Mind Vision at 13.0 against Calvin Chess Trainer's 15.0. 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.

## The numbers

| Metric | Mind Vision | Calvin Chess Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mind-vision/id6475650813/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | Free | — |
| Size | 21 MB | 170 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hussain Ruhullah](https://appshunter.io/developer/1724666015) | [DAVID MARKLE](https://appshunter.io/developer/1880745263) |

## What reviewers say

### Mind Vision

[App page](https://appshunter.io/ios/app/mind-vision/id6475650813)

This app helps users practice martial arts techniques and develop enhanced mental vision through blindfolded exercises. It aims to foster mind-body harmony and unlock extraordinary potential for martial artists and those seeking expanded mental horizons.

**Highlights:** Martial arts technique practice, Mind-body harmony development, Blindfolded vision exercises, Spatial awareness enhancement, Mental horizon expansion

**Features:** macOS Compatibility

**In-app purchases:** none


### Calvin Chess Trainer

[App page](https://appshunter.io/ios/app/calvin-chess-trainer/id6759800929)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mind Vision free?

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

### Is Calvin Chess Trainer free?

Calvin Chess Trainer is free to download, with no in-app purchases.

### Do Mind Vision or Calvin Chess Trainer have ads?

Neither Mind Vision nor Calvin Chess Trainer shows ads.

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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.*