# Denkspur vs Mnemonic Brain

The clearest difference is in-app purchases: Denkspur at none against Mnemonic Brain's 1. Denkspur also leads on iOS requirement (11.0 vs 26.0). Mnemonic Brain's advantage is update cadence (fortnightly vs every 21 months). On price, ads and device support there is nothing between them.

Both are free to download. Mnemonic Brain sells 1 one-off in-app purchase. Denkspur asks for nothing beyond the download.

Denkspur ships an update every 21 months, Mnemonic Brain fortnightly. Both last shipped on November 2, 2026.

## The numbers

| Metric | Denkspur | Mnemonic Brain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Fortnightly** |
| Size | 268 MB | 15 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pioneo GmbH](https://appshunter.io/developer/1066782345) | [Gerhard Lentschik](https://appshunter.io/developer/629988041) |

## What reviewers say

### Denkspur

[App page](https://appshunter.io/ios/app/denkspur/id1321932771)

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

**In-app purchases:** none


### Mnemonic Brain

[App page](https://appshunter.io/ios/app/mnemonic-brain-training/id1456363656)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertising | $1.99 | one-time |


## Frequently asked questions

### Is Denkspur free?

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

### Is Mnemonic Brain free?

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

### Do Denkspur or Mnemonic Brain have ads?

Neither Denkspur nor Mnemonic Brain shows ads.

### Which is updated more often, Denkspur or Mnemonic Brain?

Denkspur ships an update every 21 months, and Mnemonic Brain fortnightly. Most recently, Denkspur was updated on November 2, 2026 and Mnemonic Brain on November 2, 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.*