# MindSpan Memory Booster vs Preflo Dojo

The clearest difference is price: MindSpan Memory Booster at Free against Preflo Dojo's $4.99. Preflo Dojo's advantage is iOS requirement (13.0 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

MindSpan Memory Booster is free to download; Preflo Dojo costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MindSpan Memory Booster ships an update fortnightly, Preflo Dojo every 3 weeks. The most recent releases landed on October 2, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | MindSpan Memory Booster | Preflo Dojo |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 5 MB | 21 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bothina Elzoobi](https://appshunter.io/developer/991489487) | [Masahiro Akebi](https://appshunter.io/developer/1884865177) |

## What reviewers say

### MindSpan Memory Booster

[App page](https://appshunter.io/ios/app/mindspan-memory-booster/id1111781150)

Train your working memory with a simple yet challenging game. Observe moving shapes and recall their details like color and pattern to progress. Improve your cognitive skills essential for learning and focus.

**Highlights:** Observe and recall moving geometric shapes, Identify shape, color, and pattern, Increasing difficulty with speed and complexity, Trains working memory and cognitive skills, Focuses on fluid intelligence and learning ability

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

**In-app purchases:** none


### Preflo Dojo

[App page](https://appshunter.io/ios/app/preflo-dojo-preflop-trainer/id6786651700)

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

**In-app purchases:** none


## Frequently asked questions

### Is MindSpan Memory Booster free?

MindSpan Memory Booster is free to download, with no in-app purchases.

### Is Preflo Dojo free?

Preflo Dojo costs $4.99, with no in-app purchases.

### Do MindSpan Memory Booster or Preflo Dojo have ads?

Neither MindSpan Memory Booster nor Preflo Dojo shows ads.

### Which is updated more often, MindSpan Memory Booster or Preflo Dojo?

MindSpan Memory Booster ships an update fortnightly, and Preflo Dojo every 3 weeks. Most recently, MindSpan Memory Booster was updated on October 2, 2026 and Preflo Dojo on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*