# MHApp vs Periop Pacemaker

The clearest difference is rating: Periop Pacemaker at 5.0 against MHApp's 4.1. Periop Pacemaker also leads on review sentiment (100% vs 67%). MHApp's advantage is in-app purchases (none vs 2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Periop Pacemaker sells 2 in-app purchases, starting at $2.99 per year. MHApp asks for nothing beyond the download.

Periop Pacemaker holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 9 and 8 respectively. Written reviews point the same way: 67% of MHApp's written reviews are positive against 100% of Periop Pacemaker's.

MHApp ships an update every 3 weeks, Periop Pacemaker every 2 months. The most recent releases landed on September 19, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | MHApp | Periop Pacemaker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (9 ratings)](https://appshunter.io/ios/app/mhapp-malignant-hyperthermia/id392766134/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/periop-pacemaker/id6615070538/reviews)** |
| Number of ratings | **9** | 8 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 43 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Girard Development GmbH](https://appshunter.io/developer/392766137) | [Rhythm Management, LLC](https://appshunter.io/developer/1761518402) |

## What reviewers say

### MHApp

[App page](https://appshunter.io/ios/app/mhapp-malignant-hyperthermia/id392766134)

This app simulates malignant hyperthermia crises, guiding users through acute management and recording actions. It also provides educational information on MH and related topics, developed by international experts.

**Highlights:** Simulates MH crises, Guides acute management, Records actions and doses, Exports log files, Clinical grading score (CGS), Educational MH information

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

**In-app purchases:** none


### Periop Pacemaker

[App page](https://appshunter.io/ios/app/periop-pacemaker/id6615070538)

This app provides medical professionals with a decision algorithm for managing surgical patients with implantable defibrillators or pacemakers. It is based on guidelines endorsed by the Heart Rhythm Society and updated annually by an expert committee.

**Highlights:** Decision algorithm for pacemaker/defibrillator management, Endorsed by Heart Rhythm Society, Based on ASA Perioperative Cardiac Implantable Electronic Device Management Aid, Annual expert committee updates, Designed for medical professionals

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PERIOP PACEMAKER ANNUAL FEE | $2.99 | per year |
| Periop Pacemaker | $7.99 | one-time |


## Frequently asked questions

### Is MHApp free?

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

### Is Periop Pacemaker free?

Periop Pacemaker is free to download, with in-app purchases available.

### Which has better reviews, MHApp or Periop Pacemaker?

Periop Pacemaker is rated higher. MHApp averages 4.1 out of 5 from 9 ratings, while Periop Pacemaker averages 5.0 from 8 ratings.

### Do MHApp or Periop Pacemaker have ads?

Neither MHApp nor Periop Pacemaker shows ads.

### Which is updated more often, MHApp or Periop Pacemaker?

MHApp ships an update every 3 weeks, and Periop Pacemaker every 2 months. Most recently, MHApp was updated on September 19, 2026 and Periop Pacemaker on September 27, 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.*