# 4 Dots Test — Group Bourdon Attention Test

> Group Bourdon Attention Test (iPhone/iPad app by KALLUM MARTIN.)

- Source: https://appshunter.io/ios/app/4-dots-test/id6783995476 (this page in markdown: same URL + `.md`)
- Developer: [KALLUM MARTIN](https://appshunter.io/developer/1896514205)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 14.0.0 · 28 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/4-dots-test/id6783995476/reviews.md

## What is 4 Dots Test?

4 Dots Test is a digital version of the classic Group Bourdon Dot Cancellation Test—a well-established psychometric assessment used to measure concentration, sustained attention, and visual scanning ability.

How It Works

You’ll be presented with a grid containing groups of 3, 4, or 5 dots. Your objective is to identify and mark every group containing exactly 4 dots as quickly and accurately as possible. The test takes just 2 minutes to complete.

What It Measures

* Sustained attention
* Concentration
* Visual scanning speed
* Accuracy under timed conditions
* Cognitive processing efficiency

Free Features

* Complete the full 2-minute test
* Receive your Net Score
* See your overall performance rating
* Unlimited practice

Upgrade to Pro

Unlock detailed performance analytics, including:

* Accuracy Percentage
* Grid Coverage
* Correct Targets
* Errors
* Missed Targets
* Personalised performance insights
* Additional test banks for continued practice

Whether you’re preparing for a psychometric assessment, training your concentration, or simply curious about your attention skills, 4 Dots Test provides a fast, reliable assessment in just two minutes.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 4 Dots Test Pro | $1.99 | one-time |



## Version history (last 3 releases)

### 1.0.3 — 2026-08-11

* Added Pro Unlock with detailed performance analytics.
* Minor improvements and bug fixes.

### 1.0.1 — 2026-08-06

* Fixed an issue where Pro features could unlock incorrectly.
* Improved in-app purchase reliability.
* General performance improvements and bug fixes.

### 1.0 — 2026-08-05

No release notes.

## More apps by KALLUM MARTIN

- [Attention Lab](https://appshunter.io/ios/app/attention-lab/id6767850515)

All apps by KALLUM MARTIN: https://appshunter.io/developer/1896514205

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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 2026-09-04.*