# TabCAT vs NIH Toolbox V3

The clearest difference is in-app purchases: TabCAT at none against NIH Toolbox V3's 3. TabCAT also leads on rating (5.0 vs 4.7) and iOS requirement (15.0 vs 18.0). NIH Toolbox V3's advantage is update cadence (every 2 months vs every 4 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. NIH Toolbox V3 sells 3 in-app purchases, starting at $599.99 per year. TabCAT asks for nothing beyond the download.

TabCAT holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

TabCAT ships an update every 4 months, NIH Toolbox V3 every 2 months. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | TabCAT | NIH Toolbox V3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tabcat/id1541698082/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/nih-toolbox-v3/id1627119550/reviews) |
| Number of ratings | 3 | 3 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Subscription |
| Size | 205 MB | 938 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPad | iPad |
| Age rating | 17+ | 4+ |
| Developer | [University of California at San Francisco](https://appshunter.io/developer/446489325) | [Toolbox Assessments, Inc.](https://appshunter.io/developer/1724444781) |

## What reviewers say

### TabCAT

[App page](https://appshunter.io/ios/app/tabcat/id1541698082)

This medical tool offers a suite of cognitive tests for assessing executive function, memory, language, motor skills, and visuospatial abilities. It also includes multidimensional questionnaires for subjects, informants, and examiners, designed for standardized measurement in clinical and research settings.

**Highlights:** Cognitive tests, Executive function assessment, Memory assessment, Language assessment, Motor skills assessment, Visuospatial skills assessment, Multidimensional questionnaires

**In-app purchases:** none


### NIH Toolbox V3

[App page](https://appshunter.io/ios/app/nih-toolbox-v3/id1627119550)

This app provides a comprehensive set of measures to assess cognitive, emotional, motor, and sensory functions in individuals aged 3-85. Designed for research and clinical use, it offers streamlined workflows and a user interface for over 50 measures, enabling data pooling and crosswalk analysis.

**Highlights:** Cognitive, emotional, motor, sensory function assessment, Ages 3-85, Streamlined workflows and UI, Over 50 measures, Crosswalk among measures, Includes PROMIS tests

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access on 2 iPads | $599.99 | per year |
| Access on 6 iPads | $1499.99 | per year |
| Access on 10 iPads | $2499.99 | per year |


## Frequently asked questions

### Is TabCAT free?

TabCAT is free to download, with no in-app purchases.

### Is NIH Toolbox V3 free?

NIH Toolbox V3 is free to download, with in-app purchases available.

### Which has better reviews, TabCAT or NIH Toolbox V3?

TabCAT is rated higher. TabCAT averages 5.0 out of 5 from 3 ratings, while NIH Toolbox V3 averages 4.7 from 3 ratings.

### Do TabCAT or NIH Toolbox V3 have ads?

Neither TabCAT nor NIH Toolbox V3 shows ads.

### Which is updated more often, TabCAT or NIH Toolbox V3?

TabCAT ships an update every 4 months, and NIH Toolbox V3 every 2 months. Most recently, TabCAT was updated on September 23, 2026 and NIH Toolbox V3 on September 18, 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.*