# arrhythmia vs Trust

The clearest difference is rating: Trust at 4.8 against arrhythmia's 4.1. Trust also leads on review sentiment (83% vs 44%) and in-app purchases (none vs 3). arrhythmia's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (17.6 vs 26.0). On price, 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. Trust asks for nothing beyond the download.

Trust holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Trust has 706 ratings behind it against 113, so its average is the more settled of the two. Written reviews point the same way: 44% of arrhythmia's written reviews are positive against 83% of Trust's.

arrhythmia ships an update every 3 weeks, Trust every 2 months. Both last shipped on October 21, 2026.

## The numbers

| Metric | arrhythmia | Trust |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (113 ratings)](https://appshunter.io/ios/app/arrhythmia/id996560473/reviews) | **[4.8 (706 ratings)](https://appshunter.io/ios/app/trust-credential-wallet/id1473041502/reviews)** |
| Number of ratings | 113 | **706** |
| Positive reviews | 43.9% of reviews | **83.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | **Free** |
| Size | 159 MB | 39 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Single Sail Software, LLC](https://appshunter.io/developer/359715495) | [VectorCare Inc.](https://appshunter.io/developer/496744855) |

## What reviewers say

### arrhythmia

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

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 |

**What reviewers like**

- 👍 Great study tool for EKGs
- 👍 Helpful for understanding EKGs
- 👍 Good for practicing rhythm recognition
- 👍 Interactive and colorful design
- 👍 Dynamic testing

**What reviewers complain about**

- 👎 Immediately asks for paid version
- 👎 Missing common and important rhythms
- 👎 Rhythms are unrealistic
- 👎 Cannot try before signing up
- 👎 Clunky and slow horizontal scrolling

**Reported bugs**

- App no longer works after iOS update
- App does not work on Apple Watch

**Requested features**

- Add more common and important rhythms (torsades, WPW, STEMI, accelerated/tachycardic idioventricular, WAP, MAT)
- Option to read as a 12-lead instead of a single rhythm line
- Add variations to rhythms
- Add Left Bundle Branch Block
- Add a 12-lead option


### Trust

[App page](https://appshunter.io/ios/app/trust-credential-wallet/id1473041502)

This app helps healthcare professionals securely store and manage all their professional credentials, including licenses and certifications. It provides timely expiry alerts to prevent lapses and allows easy sharing of documents with employers, ensuring you're always prepared to work.

**Highlights:** Securely store licenses and certifications, Set expiry alerts for credentials, View credential status at a glance, Export and share credentials, Track multiple credential types

**In-app purchases:** none


## Frequently asked questions

### Is arrhythmia free?

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

### Is Trust free?

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

### Which has better reviews, arrhythmia or Trust?

Trust is rated higher. arrhythmia averages 4.1 out of 5 from 113 ratings, while Trust averages 4.8 from 706 ratings.

### Do arrhythmia or Trust have ads?

Neither arrhythmia nor Trust shows ads.

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

arrhythmia ships an update every 3 weeks, and Trust every 2 months. Most recently, arrhythmia was updated on October 21, 2026 and Trust on October 21, 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.*