# Mnemo Major System Trainer vs majors23

The clearest difference is price: majors23 at Free against Mnemo Major System Trainer's $12.99. majors23 also leads on update cadence (every 5 days vs every 2 months). Mnemo Major System Trainer's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17). On ads and in-app purchases there is nothing between them.

majors23 is free to download; Mnemo Major System Trainer costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mnemo Major System Trainer ships an update every 2 months, majors23 every 5 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Mnemo Major System Trainer | majors23 |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[4.4 (18 ratings)](https://appshunter.io/ios/app/mnemo-major-system-trainer/id649905769/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 88.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 54 MB | 139 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gerald Reindl](https://appshunter.io/developer/649905772) | [JAE HO YOON](https://appshunter.io/developer/1886674566) |

## What reviewers say

### Mnemo Major System Trainer

[App page](https://appshunter.io/ios/app/mnemo-major-system-trainer/id649905769)

Learn and master the Major System, a powerful mnemonic technique for remembering numbers. This app offers an integrated training program with visual aids and statistics to help you create and optimize your personalized number-to-image encoding system.

**Highlights:** Personalized Major System creation, Integrated training program, Reaction time analysis, Number sequence to image generator, Pre-installed Major System (0-99), Customizable terms and images, CSV Import/Export

**Features:** Vision Pro support

**In-app purchases:** none


### majors23

[App page](https://appshunter.io/ios/app/majors23/id6760968725)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mnemo Major System Trainer free?

Mnemo Major System Trainer costs $12.99, with no in-app purchases.

### Is majors23 free?

majors23 is free to download, with no in-app purchases.

### Do Mnemo Major System Trainer or majors23 have ads?

Neither Mnemo Major System Trainer nor majors23 shows ads.

### Which is updated more often, Mnemo Major System Trainer or majors23?

Mnemo Major System Trainer ships an update every 2 months, and majors23 every 5 days. Most recently, Mnemo Major System Trainer was updated on October 23, 2026 and majors23 on October 8, 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.*