# misTMJ vs Relay Response CPR Training

The clearest difference is in-app purchases: misTMJ at none against Relay Response CPR Training's 3. misTMJ also leads on iOS requirement (11.0 vs 16.6). Relay Response CPR Training's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Relay Response CPR Training sells 3 in-app purchases, starting at $7.99 per month. misTMJ asks for nothing beyond the download.

misTMJ ships an update monthly, Relay Response CPR Training weekly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | misTMJ | Relay Response CPR Training |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 594 MB | 204 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 17+ |
| Developer | [Himalaya Computing](https://appshunter.io/developer/1205321932) | [Ximio Health Inc](https://appshunter.io/developer/1296441024) |

## What reviewers say

### misTMJ

[App page](https://appshunter.io/ios/app/mistmj/id1592838220)

**Features:** macOS Compatibility

**In-app purchases:** none


### Relay Response CPR Training

[App page](https://appshunter.io/ios/app/relay-response-cpr-training/id1633062947)

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hands Only CPR Training | $7.99 | per month |
| Hands Only CPR Training | $29.99 | per year |
| Hands Only CPR Training | $79.99 | per year |


## Frequently asked questions

### Is misTMJ free?

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

### Is Relay Response CPR Training free?

Relay Response CPR Training is free to download, with in-app purchases available.

### Do misTMJ or Relay Response CPR Training have ads?

Neither misTMJ nor Relay Response CPR Training shows ads.

### Which is updated more often, misTMJ or Relay Response CPR Training?

misTMJ ships an update monthly, and Relay Response CPR Training weekly. Most recently, misTMJ was updated on October 27, 2026 and Relay Response CPR Training on October 24, 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.*