# Prevent vs EZTM

The clearest difference is update cadence: EZTM at weekly against Prevent's monthly. EZTM also leads on iOS requirement (13.0 vs 16.4). 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, EZTM weekly. The most recent releases landed on September 1, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Prevent | EZTM |
| --- | --- | --- |
| 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 | **Weekly** |
| Monetization | Free | — |
| Size | 46 MB | 123 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Prevent Biometrics, Inc](https://appshunter.io/developer/1121375377) | [Julien VILLARD](https://appshunter.io/developer/1575903952) |

## 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


### EZTM

[App page](https://appshunter.io/ios/app/eztm/id1599062296)

**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 EZTM free?

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

### Do Prevent or EZTM have ads?

Neither Prevent nor EZTM shows ads.

### Which is updated more often, Prevent or EZTM?

Prevent ships an update monthly, and EZTM weekly. Most recently, Prevent was updated on September 1, 2026 and EZTM on September 20, 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.*