# SPEED DEMON by ProCogny — Cognitive speed required

> Cognitive speed required (iPhone/iPad app by Douglas ETHELL.)

- Source: https://appshunter.io/ios/app/speed-demon-by-procogny/id1571987455 (this page in markdown: same URL + `.md`)
- Developer: [Douglas ETHELL](https://appshunter.io/developer/1556750445)
- Category: Entertainment, Education
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 11.0 · 116 MB
- Languages: English
- Released: 2021-10-26
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/speed-demon-by-procogny/id1571987455/reviews.md

## What is SPEED DEMON by ProCogny?

Speed Demon from ProCogny is a puzzle game that exercises cognitive aspects of shape and color recognition. A variety of shapes and colors are shown. Click on the highlighted shapes to start a level and click only those to get points. Miss one or click the wrong one, and you will lose points. The game starts easy with non-moving shapes and limited colors, but as the complexity of shapes and colors increase it gets harder. On higher levels, the shapes move to make it more challenging. Users can use the settings menu to mute sound, toggle between light and dark backgrounds, and reset scores. The free version comes with Ads, but Subscribers enjoy Ad-free play.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Three month subscription | $2.99 | per 3 months |



## Version history (last 1 release)

### 1.0 — 2021-10-26

No release notes.

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## More apps by Douglas ETHELL

- [IMAGE MEMORY by ProCogny](https://appshunter.io/ios/app/image-memory-by-procogny/id1556750443)
- [ProCogny: Memory Tracker](https://appshunter.io/ios/app/procogny-memory-tracker/id1567264955)
- [WORD RECALL by ProCogny](https://appshunter.io/ios/app/word-recall-by-procogny/id1570494179)
- [ICONIC SUDOKU by ProCogny](https://appshunter.io/ios/app/iconic-sudoku-by-procogny/id1570546465)
- [INFINITE MAHJONG by ProCogny](https://appshunter.io/ios/app/infinite-mahjong-by-procogny/id1571164300)
- [CONNECTORS by ProCogny](https://appshunter.io/ios/app/connectors-by-procogny/id1571987187)

All apps by Douglas ETHELL: https://appshunter.io/developer/1556750445

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*