# Attention Distribution Test 49 vs MemoryNumber

The clearest difference is in-app purchases: Attention Distribution Test 49 at none against MemoryNumber's 1. Attention Distribution Test 49 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. MemoryNumber sells 1 one-off in-app purchase. Attention Distribution Test 49 asks for nothing beyond the download.

Attention Distribution Test 49 ships an update every 3 weeks, MemoryNumber every 2 months. The most recent releases landed on September 15, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Attention Distribution Test 49 | MemoryNumber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memorynumber-braintraining/id6444015375/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 4 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [projectTK](https://appshunter.io/developer/547623233) | [ryo muranaka](https://appshunter.io/developer/1606480078) |

## What reviewers say

### Attention Distribution Test 49

[App page](https://appshunter.io/ios/app/attention-distribution-test-49/id1102048864)

**Features:** macOS Compatibility

**In-app purchases:** none


### MemoryNumber

[App page](https://appshunter.io/ios/app/memorynumber-braintraining/id6444015375)

This app helps train your memory and cognitive skills through a number-based puzzle. Memorize numbers and their positions to solve challenges, with adjustable difficulty levels.

**Highlights:** Number memorization challenges, Position tracking, Adjustable difficulty levels, Cognitive skill training, Puzzle solving

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | one-time |


## Frequently asked questions

### Is Attention Distribution Test 49 free?

Attention Distribution Test 49 is free to download, with no in-app purchases.

### Is MemoryNumber free?

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

### Do Attention Distribution Test 49 or MemoryNumber have ads?

MemoryNumber shows ads; Attention Distribution Test 49 does not.

### Which is updated more often, Attention Distribution Test 49 or MemoryNumber?

Attention Distribution Test 49 ships an update every 3 weeks, and MemoryNumber every 2 months. Most recently, Attention Distribution Test 49 was updated on September 15, 2026 and MemoryNumber on September 19, 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.*