# Clock Drawing Test (CDT) vs BoCA Cognitive Assessment

The clearest difference is update cadence: Clock Drawing Test (CDT) at every 10 days against BoCA Cognitive Assessment's every 3 months. Clock Drawing Test (CDT) also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Clock Drawing Test (CDT) ships an update every 10 days, BoCA Cognitive Assessment every 3 months. The most recent releases landed on October 9, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Clock Drawing Test (CDT) | BoCA Cognitive Assessment |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/boca-cognitive-assessment/id6746280008/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Monetization | — | Free |
| Size | 8 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glinberg Robotics, LLC](https://appshunter.io/developer/1567954262) | [Boston Cognitive](https://appshunter.io/developer/1816049492) |

## What reviewers say

### Clock Drawing Test (CDT)

[App page](https://appshunter.io/ios/app/clock-drawing-test-cdt/id1643602197)

**Features:** macOS Compatibility

**In-app purchases:** none


### BoCA Cognitive Assessment

[App page](https://appshunter.io/ios/app/boca-cognitive-assessment/id6746280008)

Assess key brain functions like memory and attention from home in under 10 minutes. Track progress over time and compare results to others your age and gender. This science-based tool is developed by researchers and is HIPAA-compliant.

**Highlights:** Memory assessment, Attention tracking, Language evaluation, Executive function monitoring, Instant results, Progress tracking, Age and gender comparisons

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Clock Drawing Test (CDT) free?

Clock Drawing Test (CDT) is free to download, with no in-app purchases.

### Is BoCA Cognitive Assessment free?

BoCA Cognitive Assessment is free to download, with no in-app purchases.

### Do Clock Drawing Test (CDT) or BoCA Cognitive Assessment have ads?

Neither Clock Drawing Test (CDT) nor BoCA Cognitive Assessment shows ads.

### Which is updated more often, Clock Drawing Test (CDT) or BoCA Cognitive Assessment?

Clock Drawing Test (CDT) ships an update every 10 days, and BoCA Cognitive Assessment every 3 months. Most recently, Clock Drawing Test (CDT) was updated on October 9, 2026 and BoCA Cognitive Assessment on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*