# Brain training vs Cdk

The clearest difference is in-app purchases: Cdk at none against Brain training's 5. Cdk also leads on ads (none vs shown) and update cadence (monthly vs every 2 months). Brain training's advantage is iOS requirement (12.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Brain training sells 5 one-off in-app purchases. Cdk asks for nothing beyond the download.

Brain training ships an update every 2 months, Cdk monthly. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Brain training | Cdk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/brain-training-memory-and-logic/id6474096104/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 125 MB | 235 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cristina Munoz Castillo](https://appshunter.io/developer/1600497964) | [Ville de Coudekerque-Branche](https://appshunter.io/developer/1477200260) |

## What reviewers say

### Brain training

[App page](https://appshunter.io/ios/app/brain-training-memory-and-logic/id6474096104)

Enhance cognitive skills with a program designed by psychologists and teachers. Engage in 18 mind games across 500+ levels to boost memory, reaction time, concentration, logic, spatial intelligence, and math abilities. Choose between relaxed or challenging modes for daily mental workouts.

**Highlights:** Memory games, Logic puzzles, Math challenges, Spatial intelligence training, Reaction time improvement, Concentration exercises, 500+ levels

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Coins | $0.99 | one-time |
| 125 Coins | $1.99 | one-time |
| 300 Coins | $3.49 | one-time |
| 1000 Coins | $6.99 | one-time |
| Full Game | $7.99 | one-time |


### Cdk

[App page](https://appshunter.io/ios/app/cdk-quiz/id6740033495)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Brain training free?

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

### Is Cdk free?

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

### Do Brain training or Cdk have ads?

Brain training shows ads; Cdk does not.

### Which is updated more often, Brain training or Cdk?

Brain training ships an update every 2 months, and Cdk monthly. Most recently, Brain training was updated on October 7, 2026 and Cdk on September 29, 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.*