# Memory Numbers Sequence vs Cognitive Challenge

The clearest difference is ads: Memory Numbers Sequence at none against Cognitive Challenge's shown. Cognitive Challenge's advantage is update cadence (every 3 weeks vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Memory Numbers Sequence ships an update every 4 months, Cognitive Challenge every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Memory Numbers Sequence | Cognitive Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cognitive-challenge/id6764170208/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 11 MB | 37 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Igor Khomiakov](https://appshunter.io/developer/1864734060) | [Boolean Bros LLC](https://appshunter.io/developer/1890936797) |

## What reviewers say

### Memory Numbers Sequence

[App page](https://appshunter.io/ios/app/memory-numbers-sequence/id6757886984)

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

**In-app purchases:** none


### Cognitive Challenge

[App page](https://appshunter.io/ios/app/cognitive-challenge/id6764170208)

This fast-paced game challenges your focus, reaction speed, and cognitive flexibility. Compete against your own scores and track your improvement with each session. It's designed to help you sharpen your mind through engaging gameplay.

**Highlights:** Focus testing, Reaction speed challenges, Cognitive flexibility exercises, Self-competition, Performance improvement tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Memory Numbers Sequence free?

Memory Numbers Sequence is free to download, with no in-app purchases.

### Is Cognitive Challenge free?

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

### Do Memory Numbers Sequence or Cognitive Challenge have ads?

Cognitive Challenge shows ads; Memory Numbers Sequence does not.

### Which is updated more often, Memory Numbers Sequence or Cognitive Challenge?

Memory Numbers Sequence ships an update every 4 months, and Cognitive Challenge every 3 weeks. Most recently, Memory Numbers Sequence was updated on October 23, 2026 and Cognitive Challenge on October 25, 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.*