# Mind Training Game vs NumChain

The clearest difference is in-app purchases: Mind Training Game at none against NumChain's 5. Mind Training Game also leads on ads (none vs shown) and iOS requirement (16.0 vs 18.0). NumChain's advantage is update cadence (monthly vs every 10 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. NumChain sells 5 one-off in-app purchases. Mind Training Game asks for nothing beyond the download.

Mind Training Game ships an update every 10 months, NumChain monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Mind Training Game | NumChain |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 14 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Fabio Jorge Conceicao Sousa](https://appshunter.io/developer/1402259943) | [J.Benito Pereira](https://appshunter.io/developer/1267263346) |

## What reviewers say

### Mind Training Game

[App page](https://appshunter.io/ios/app/mind-training-game/id1469686172)

This game offers fast-paced mathematical challenges to enhance calculation speed and focus. Compete against the clock, track your progress, and challenge friends on global leaderboards. Practice daily to improve your arithmetic skills.

**Highlights:** Progressive difficulty levels, Real-time timer, Performance history tracking, 60-second Sprint Mode, Game Center integration, Global and friends leaderboards

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

**In-app purchases:** none


### NumChain

[App page](https://appshunter.io/ios/app/numchain-math-number-puzzle/id6670266485)

This number puzzle game sharpens mental math skills through engaging gameplay. Connect numbers to form chains, sums, and products across three distinct modes. Compete globally, earn achievements, and enjoy a clean, intuitive interface designed for all ages.

**Highlights:** Three game modes: Chains, Sums, Multiplication, Global leaderboards and achievements, Hint system for challenging puzzles, Intuitive interface and clean design, Optimized for iPhone and iPad, Develops mental calculation and strategic thinking

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Points | $0.99 | one-time |
| 53 Points | $1.99 | one-time |
| Ads Remove | $2.99 | one-time |
| 85 Points | $2.99 | one-time |
| 110 Points | $3.99 | one-time |


## Frequently asked questions

### Is Mind Training Game free?

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

### Is NumChain free?

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

### Do Mind Training Game or NumChain have ads?

NumChain shows ads; Mind Training Game does not.

### Which is updated more often, Mind Training Game or NumChain?

Mind Training Game ships an update every 10 months, and NumChain monthly. Most recently, Mind Training Game was updated on November 3, 2026 and NumChain on November 4, 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.*