# MemTrainer vs Luck Chess

The clearest difference is in-app purchases: MemTrainer at none against Luck Chess's 3. MemTrainer also leads on iOS requirement (11.0 vs 15.6). Luck Chess's advantage is update cadence (every 3 days vs every 57 months). On price, ads and device support there is nothing between them.

Both are free to download. Luck Chess sells 3 one-off in-app purchases. MemTrainer asks for nothing beyond the download.

MemTrainer ships an update every 57 months, Luck Chess every 3 days. The most recent releases landed on September 17, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | MemTrainer | Luck Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/luck-chess/id6739575991/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 57 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 34 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POK](https://appshunter.io/developer/357275870) | [Beijing Tongqi Management Consulting Co., Ltd](https://appshunter.io/developer/1786127870) |

## What reviewers say

### MemTrainer

[App page](https://appshunter.io/ios/app/memtrainer/id506423958)

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

**In-app purchases:** none


### Luck Chess

[App page](https://appshunter.io/ios/app/luck-chess/id6739575991)

Engage in bite-sized chess puzzles designed to sharpen your tactical thinking and strategic planning. This game offers hundreds of challenges suitable for all skill levels, from beginners to experienced players, helping you improve your game step by step.

**Highlights:** Hundreds of chess puzzles, Tactical and strategic challenges, Pattern recognition improvement, Clean and intuitive interface, Play anytime, anywhere

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold1000 | $1.99 | one-time |
| Gold5.99 | $5.99 | one-time |
| Gold11.99 | $11.99 | one-time |


## Frequently asked questions

### Is MemTrainer free?

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

### Is Luck Chess free?

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

### Do MemTrainer or Luck Chess have ads?

Both MemTrainer and Luck Chess show ads.

### Which is updated more often, MemTrainer or Luck Chess?

MemTrainer ships an update every 57 months, and Luck Chess every 3 days. Most recently, MemTrainer was updated on September 17, 2026 and Luck Chess on June 5, 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.*