# arrhythmia vs EMScore

The clearest difference is in-app purchases: EMScore at none against arrhythmia's 3. EMScore also leads on iOS requirement (15.5 vs 17.6). arrhythmia's advantage is chart position (#188 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. arrhythmia sells 3 in-app purchases, starting at $2.99 per month. EMScore asks for nothing beyond the download.

arrhythmia ships an update every 3 weeks, EMScore monthly. The most recent releases landed on September 21, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | arrhythmia | EMScore |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (111 ratings)](https://appshunter.io/ios/app/arrhythmia/id996560473/reviews)** | — |
| Number of ratings | **111** | — |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Subscription | — |
| Best chart rank | **#188** | — |
| Size | 159 MB | 120 MB |
| Requires iOS | 17.6 | **15.5** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Single Sail Software, LLC](https://appshunter.io/developer/359715495) | [EMScore](https://appshunter.io/developer/1887029535) |

## What reviewers say

### arrhythmia

[App page](https://appshunter.io/ios/app/arrhythmia/id996560473)

**Currently charting:** #188 Top Grossing · Medical (US App Store)

Practice interpreting EKGs in lead II with realistic simulations. Choose rhythms to study or test your knowledge in a game mode. Ideal for healthcare professionals to hone their diagnostic skills.

**Highlights:** EKG interpretation practice, Lead II simulation, Study Mode with rhythm selection, Game Mode for random rhythm identification, Customizable rhythm sets, Realistic rhythm variations

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $19.99 | per year |
| Unlock All Rhythms (One-time Purchase) | $4.99 | one-time |


### EMScore

[App page](https://appshunter.io/ios/app/emscore/id6760958693)

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

**In-app purchases:** none


## Frequently asked questions

### Is arrhythmia free?

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

### Is EMScore free?

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

### Do arrhythmia or EMScore have ads?

Neither arrhythmia nor EMScore shows ads.

### Which is updated more often, arrhythmia or EMScore?

arrhythmia ships an update every 3 weeks, and EMScore monthly. Most recently, arrhythmia was updated on September 21, 2026 and EMScore on September 6, 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.*