# AirStrip OB vs NIH Toolbox V3

The clearest difference is rating: NIH Toolbox V3 at 4.7 against AirStrip OB's 4.0. NIH Toolbox V3 also leads on update cadence (every 2 months vs every 4 months). AirStrip OB's advantage is in-app purchases (none vs 3) and iOS requirement (10.3 vs 18.0). 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. AirStrip OB asks for nothing beyond the download.

NIH Toolbox V3 holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

AirStrip OB ships an update every 4 months, NIH Toolbox V3 every 2 months. The most recent releases landed on June 5, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | AirStrip OB | NIH Toolbox V3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/airstrip-ob/id309381240/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/nih-toolbox-v3/id1627119550/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Subscription |
| Size | 5 MB | 938 MB |
| Requires iOS | **10.3** | 18.0 |
| Devices | **iPhone, iPod** | iPad |
| Age rating | 12+ | 4+ |
| Developer | [AirStrip Technologies, LLC](https://appshunter.io/developer/309381243) | [Toolbox Assessments, Inc.](https://appshunter.io/developer/1724444781) |

## What reviewers say

### AirStrip OB

[App page](https://appshunter.io/ios/app/airstrip-ob/id309381240)

This application allows obstetricians to securely view real-time patient data, including fetal heart tracings and vital signs, from their iPhone. It enables remote access to labor and delivery unit information, facilitating care even when away from the bedside. An offline demo is included for feature exploration.

**Highlights:** View fetal heart tracings remotely, Access real-time waveform data, Securely log on to hospital systems, View patient census and nursing notes, Review historical patient data, Offline demo for feature exploration

**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 AirStrip OB free?

AirStrip OB 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, AirStrip OB or NIH Toolbox V3?

NIH Toolbox V3 is rated higher. AirStrip OB averages 4.0 out of 5 from 3 ratings, while NIH Toolbox V3 averages 4.7 from 3 ratings.

### Do AirStrip OB or NIH Toolbox V3 have ads?

Neither AirStrip OB nor NIH Toolbox V3 shows ads.

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

AirStrip OB ships an update every 4 months, and NIH Toolbox V3 every 2 months. Most recently, AirStrip OB was updated on June 5, 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.*