# Gray Institute vs AiSensor Live

Gray Institute and AiSensor Live both sit at 5.0 stars, but that hides the real split: 100% of AiSensor Live's written reviews are positive against 0% of Gray Institute's. AiSensor Live also leads on update cadence (every 2 weeks vs every 2 months). Gray Institute's advantage is ratings volume (6 vs 1) and iOS requirement (14.0 vs 17.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Gray Institute sells 10 in-app purchases, starting at $0.49 per month and AiSensor Live sells 1 in-app purchase, starting at $150.00 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Gray Institute against 5.0 for AiSensor Live. That said, the two scores are not equally well evidenced: Gray Institute has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 0% of Gray Institute's written reviews are positive against 100% of AiSensor Live's.

Gray Institute ships an update every 2 months, AiSensor Live every 2 weeks. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Gray Institute | AiSensor Live |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/gray-institute/id1130877074/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/aisensor-live/id6752816637/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 70 MB | 2 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dynamic Health & Fitness, LLC](https://appshunter.io/developer/655559506) | [Groundforce Labs Inc](https://appshunter.io/developer/1804673329) |

## What reviewers say

### Gray Institute

[App page](https://appshunter.io/ios/app/gray-institute/id1130877074)

This app helps movement professionals assess clients, design custom workouts, and track progress using functional science. It integrates with a client-facing app to set habits and access educational resources for continuous, measurable client improvement.

**Highlights:** 3DMAPS® Screening Tool, Relative Success Code analysis, Extensive exercise library, Pre-built workout templates, Client progress tracking, Integration with Vitality app

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Plan | $0.49 | per month |
| Movement Professional Locator | $4.99 | per month |
| Individual Subscription Plan | $9.99 | per month |
| Templates | $9.99 | per month |
| Webinars | $9.99 | per month |
| Family Subscription Plan | $14.99 | per month |
| Unlimited Clients | $14.99 | per month |
| Trainer Plus All Access | $19.99 | per month |
| Trainer Plus | $24.99 | per month |
| Trainer Plus | $149.99 | per year |


### AiSensor Live

[App page](https://appshunter.io/ios/app/aisensor-live/id6752816637)

This app captures high-speed video and pressure data from golf sensors to provide objective swing analysis. It offers detailed metrics for trainers to assess golfer performance and allows for annotated video exports to share with clients.

**Highlights:** High-speed video capture, Pressure data from sensors, Objective swing metrics, Center of pressure traces, Annotated video export, Client sharing

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Annual Subscription | $150.00 | per year |


## Frequently asked questions

### Is Gray Institute free?

Gray Institute is free to download, with in-app purchases available.

### Is AiSensor Live free?

AiSensor Live is free to download, with in-app purchases available.

### Which has better reviews, Gray Institute or AiSensor Live?

Gray Institute and AiSensor Live are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do Gray Institute or AiSensor Live have ads?

Neither Gray Institute nor AiSensor Live shows ads.

### Which is updated more often, Gray Institute or AiSensor Live?

Gray Institute ships an update every 2 months, and AiSensor Live every 2 weeks. Most recently, Gray Institute was updated on October 12, 2026 and AiSensor Live on October 15, 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.*