# Concussion Explorer vs GMA Rules

The clearest difference is device support: Concussion Explorer at 3 against GMA Rules's 1. Concussion Explorer also leads on iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Concussion Explorer | GMA Rules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gma-rules/id6755439270/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 62 MB | 36 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Palo Alto Veterans Institute for Research](https://appshunter.io/developer/1292950620) | [NEUROPSYCHOLOGICAL CONSULTING SERVICES, LLC](https://appshunter.io/developer/1853909311) |

## What reviewers say

### Concussion Explorer

[App page](https://appshunter.io/ios/app/concussion-explorer/id6752501030)

**Features:** macOS Compatibility

**In-app purchases:** none


### GMA Rules

[App page](https://appshunter.io/ios/app/gma-rules/id6755439270)

This app supports mental well-being by helping users build healthy habits and track daily activities. It offers educational content on mental health topics and tools to monitor symptoms, with resources to find professional care.

**Highlights:** Lifestyle monitoring, Educational content on mental health, Symptom tracking, Find professional care, Daily habit tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concussion Explorer free?

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

### Is GMA Rules free?

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

### Do Concussion Explorer or GMA Rules have ads?

Neither Concussion Explorer nor GMA Rules shows ads.

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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.*