# Stack Trainer vs Mindbuster

The clearest difference is review sentiment: Mindbuster at 100% against Stack Trainer's 0%. Mindbuster also leads on price (Free vs $3.99) and rating (5.0 vs 1.0). On ratings volume, update cadence, ads and device support there is nothing between them.

Mindbuster is free to download; Stack Trainer costs $3.99 up front. Stack Trainer sells 2 in-app purchases, starting at $1.99 per 3 months. Mindbuster asks for nothing beyond the download.

Mindbuster holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of Stack Trainer's written reviews are positive against 100% of Mindbuster's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Stack Trainer | Mindbuster |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/stack-trainer/id646458442/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mindbuster-companion-app/id1623246423/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Subscription | **Free** |
| Size | 6 MB | 30 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ralph Cos](https://appshunter.io/developer/573505028) | [Soren Harbo Nielsen](https://appshunter.io/developer/1605808079) |

## What reviewers say

### Stack Trainer

[App page](https://appshunter.io/ios/app/stack-trainer/id646458442)

This app provides a realistic card deck experience for close-up magicians to train their memory of card stacks. It offers various challenge modes and filters to aid learning and practice, with a focus on a clean, distraction-free interface.

**Highlights:** Realistic card deck simulation, Multiple mnemonic training approaches, Customizable stack filters, Lorrayne's peg words integration, Interactive quick-touch analyzer, Display and whisper modes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months Subscription | $1.99 | per 3 months |
| Annual Subscription | $2.99 | per year |


### Mindbuster

[App page](https://appshunter.io/ios/app/mindbuster-companion-app/id1623246423)

This application requires specific hardware to function, acting as a companion to a physical device. It brings features like auto-scaling, unlimited spectators, and drawing saving to your iPhone or iPad. The app connects wirelessly and offers zone functionality using device vibration.

**Highlights:** Auto Scale to fill, Unlimited spectators, Save drawings to Photos, Zone functionality with vibration, Wi-Fi connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Trainer free?

Stack Trainer costs $3.99, and also offers in-app purchases.

### Is Mindbuster free?

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

### Which has better reviews, Stack Trainer or Mindbuster?

Mindbuster is rated higher. Stack Trainer averages 1.0 out of 5 from 1 ratings, while Mindbuster averages 5.0 from 1 ratings.

### Do Stack Trainer or Mindbuster have ads?

Neither Stack Trainer nor Mindbuster shows ads.

### Which is updated more often, Stack Trainer or Mindbuster?

Stack Trainer ships an update every 3 months, and Mindbuster every 3 months. Most recently, Stack Trainer was updated on October 7, 2026 and Mindbuster on October 15, 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.*