# CDT Open

> At-home cognitive decline tracking via monthly clock draw tests. (iPhone/iPad app by BRAINSCANOLOGY INC.)

- Source: https://appshunter.io/ios/app/cdt-open/id6449039222 (this page in markdown: same URL + `.md`)
- Developer: [BRAINSCANOLOGY INC](https://appshunter.io/developer/1687511935)
- Category: Health & Fitness, Medical
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 31 MB
- Languages: English
- Released: 2023-06-11
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cdt-open/id6449039222/reviews.md

## What is CDT Open?

BrainScanology now offers an at-home objective Clock Draw Test (CDT) for tracking cognitive decline due to dementia or mild cognitive impairment (MCI).
When done monthly, it can detect early signs of dementia.
Health is most easily tracked at home, especially when you're concerned about Alzheimer's Disease, Frontotemporal Disorders (FTD), Lewy Body Dementia (LBD), Vascular Dementia, and Parkinson's Disease.
CDT Open can tell you when you should see a personal psychologist, psychiatrist, or therapist about your cognitive state due to aging.
It's like checking your blood pressure, except once per month. CDT Open is a FREE monthly clock draw analysis! All you need is a pen, paper, and smartphone camera.
Our revolutionary technology tracks subtle but significant changes in peoples’ hand-drawn clocks over time that are hidden to the naked eye.

## Key features

- At-home cognitive decline tracking
- Objective Clock Draw Test (CDT)
- Early detection of dementia signs
- Tracks changes over time
- Guides when to see a specialist
- Uses smartphone camera


## Frequently asked questions about CDT Open

### What is CDT Open?

CDT Open is a free, at-home application that uses the Clock Draw Test to help track cognitive decline. It analyzes hand-drawn clocks to detect subtle changes over time, which can be indicative of conditions like dementia or mild cognitive impairment.

### How does CDT Open help track cognitive decline?

The app utilizes your smartphone's camera to capture and analyze your hand-drawn clocks. Its technology tracks subtle changes that might be missed by the naked eye, providing an objective measure of cognitive function over monthly assessments.

### Is CDT Open suitable for detecting specific conditions?

Yes, CDT Open is designed to help track cognitive changes associated with conditions such as Alzheimer's Disease, Frontotemporal Disorders (FTD), Lewy Body Dementia (LBD), Vascular Dementia, and Parkinson's Disease.

### When should I see a professional based on CDT Open results?

CDT Open can help identify when you might need to consult a personal psychologist, psychiatrist, or therapist about your cognitive state. It acts as an early warning system, similar to how blood pressure checks monitor physical health.

### What do I need to use CDT Open?

To use CDT Open, you will need a pen, a piece of paper, and a smartphone with a camera. The app is free to use for monthly clock draw analysis.

### Is CDT Open available on all devices?

CDT Open is currently supported on iPhones, iPads, and iPods. It is designed for iOS devices.

### How often is CDT Open updated?

CDT Open was last updated on July 10, 2024, with version 2.0.0. The developer, BRAINSCANOLOGY INC, actively maintains the application.

### Does CDT Open have ads?

No, CDT Open does not contain advertisements. It is a free application focused on providing an ad-free experience for users monitoring their cognitive health.

## Version history (last 5 releases)

### 2.0.0 — 2024-07-10

Improved user experience and performance

### 1.9.0 — 2024-05-08

Improved user experience and performance

### 1.8.0 — 2024-01-25

Improved user experience and performance

### 1.7.0 — 2023-08-28

Improved user experience

### 1.6.0 — 2023-07-20

1. Improved user experience
2. Instructions for Drawing Clocks
3. Added Contact Us and About Us
4. Share the app

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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 2026-06-10.*