# Prevent vs Merritt Made Human Performance

The clearest difference is update cadence: Prevent at monthly against Merritt Made Human Performance's every 12 months. 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.

Prevent ships an update monthly, Merritt Made Human Performance every 12 months. The most recent releases landed on September 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Prevent | Merritt Made Human Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/prevent/id1121375378/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Free | — |
| Size | 46 MB | 44 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Prevent Biometrics, Inc](https://appshunter.io/developer/1121375377) | [Merritt Made Human Performance, LLC](https://appshunter.io/developer/1753414131) |

## What reviewers say

### Prevent

[App page](https://appshunter.io/ios/app/prevent/id1121375378)

This app pairs with a special mouthguard to monitor head impacts in real-time. It provides detailed data on acceleration, direction, and load for each impact, helping teams and parents assess player safety and identify athletes needing evaluation.

**Highlights:** Real-time head impact data, Linear and rotational acceleration tracking, Impact direction and location analysis, Impact Load measurement, Player and team data views, Live alerts for high-magnitude impacts

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

**In-app purchases:** none


### Merritt Made Human Performance

[App page](https://appshunter.io/ios/app/merritt-made-human-performance/id6504698633)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prevent free?

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

### Is Merritt Made Human Performance free?

Merritt Made Human Performance is free to download, with no in-app purchases.

### Do Prevent or Merritt Made Human Performance have ads?

Neither Prevent nor Merritt Made Human Performance shows ads.

### Which is updated more often, Prevent or Merritt Made Human Performance?

Prevent ships an update monthly, and Merritt Made Human Performance every 12 months. Most recently, Prevent was updated on September 1, 2026 and Merritt Made Human Performance on September 8, 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.*