# Bourdon Wiersma Test — Attention Concentration Test

> Attention Concentration Test (iPhone/iPad app by Yellow Riders.)

- Source: https://appshunter.io/ios/app/bourdon-wiersma-test/id6445822769 (this page in markdown: same URL + `.md`)
- Developer: [Yellow Riders](https://appshunter.io/developer/1209479274)
- Category: Medical, Health & Fitness
- Price: Free (on sale, was $1.99)
- Age rating: 4+
- Requires: iOS 11.0 · 44 MB
- Languages: English
- Released: 2023-02-25
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/bourdon-wiersma-test/id6445822769/reviews.md

## What is Bourdon Wiersma Test?

The test has been used in the evaluation of stroke where subjects were instructed to check all groups of four dots. The number of groups of dots other than four needs to be pushed away by hitting the x button, and the time spent (maximum, 15 minutes) is taken into account.


## Version history (last 1 release)

### 1.0 — 2023-02-25

No release notes.

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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 2026-08-17.*