# Opatus CPTA — Objective Test of Attention

> Objective Test of Attention (iPhone/iPad app by Opatus AB.)

- Source: https://appshunter.io/ios/app/opatus-cpta/id857716982 (this page in markdown: same URL + `.md`)
- Developer: [Opatus AB](https://appshunter.io/developer/857716985)
- Category: Medical
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 58 MB
- Languages: American English, Dutch, German (Germany), Norwegian Bokmål, Polish, Swedish
- Released: 2014-04-23
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/opatus-cpta/id857716982/reviews.md

## What is Opatus CPTA?

The purpose of the app is to find a person’s objective behavioral profile regarding attention and activity.  The app measures your reaction time and attention during an 8-20 minutes long continuous performance test. You will receive results like reaction time, commission errors and omission errors. 

Make a request for user account to info@opatus.se
With a user account, the target audience is healthcare professionals working in areas where sustained attention is an important issue. The professional user will get access to an extensive test report.

The app can also be used without a user account. 
Without a user account, the target audience is people who are curious about their performance compared to 
* (a control group, to come)
* family member 
* friend 
The result is limited to reaction time and score on various errors.

The app targets the age range 3 to 60+


## Version history (last 5 releases)

### 2.2 — 2021-04-22

Technical update: Reduced memory requirement

### 2.1 — 2021-04-21

Fixed stability issues
Preparation for delegated tests

### 2.0 — 2020-05-26

New Opatus look & feel
Increased robustness for off-line testing
Practice test required
More settings available

### 1.10 — 2020-05-22

Added Dutch language
Fixed minor bugs
Intermediate version

### 1.9 — 2016-06-19

Fixed a bug in server communication
Including Dutch language

## Apps similar to Opatus CPTA

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [IVA Testing System](https://appshunter.io/ios/app/iva-testing-system/id1096104945) | 2.3 (3) | Free | Medical |
| [DGPPN Kongress](https://appshunter.io/ios/app/dgppn-kongress/id6751279899) | — | Free | Medical |
| [T.A.C.T.](https://appshunter.io/ios/app/tact/id849194153) | 3.7 (3) | Free | Medical |

## More apps by Opatus AB

- [SMST](https://appshunter.io/ios/app/smst/id914209039)

All apps by Opatus AB: https://appshunter.io/developer/857716985

## Related topics

[opatus cpta](https://appshunter.io/ios/topics/opatus-cpta)

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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 2026-05-16.*