# Memory Test vs Drous

The clearest difference is ads: Memory Test at none against Drous's shown. Drous's advantage is update cadence (every 6 days vs every 4 months) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Memory Test sells 2 in-app purchases, starting at $2.99 per 7 days and Drous sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Memory Test ships an update every 4 months, Drous every 6 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Memory Test | Drous |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 days** |
| Size | 12 MB | 21 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Anton Zuev](https://appshunter.io/developer/521562103) | [abdallah sakkijha](https://appshunter.io/developer/6779821385) |

## What reviewers say

### Memory Test

[App page](https://appshunter.io/ios/app/memory-test-brain-training/id6756063811)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium for 1 year | $24.99 | per year |


### Drous

[App page](https://appshunter.io/ios/app/drous/id6779821383)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DROUS Pro — Monthly | $1.99 | per month |
| DROUS Pro — Yearly | $19.99 | per year |
| DROUS Pro — Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Memory Test free?

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

### Is Drous free?

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

### Do Memory Test or Drous have ads?

Drous shows ads; Memory Test does not.

### Which is updated more often, Memory Test or Drous?

Memory Test ships an update every 4 months, and Drous every 6 days. Most recently, Memory Test was updated on October 31, 2026 and Drous on October 28, 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.*