# ECG Pro | Road to Mastery vs CMS1600

The clearest difference is in-app purchases: CMS1600 at none against ECG Pro | Road to Mastery's 5. CMS1600 also leads on review sentiment (100% vs 76%) and iOS requirement (15.0 vs 17.6). ECG Pro | Road to Mastery's advantage is update cadence (every 9 days vs every 6 months) and ratings volume (3.7K vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. ECG Pro | Road to Mastery sells 5 in-app purchases, starting at $4.99 per month. CMS1600 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for ECG Pro | Road to Mastery against 4.5 for CMS1600. That said, the two scores are not equally well evidenced: ECG Pro | Road to Mastery has 3.7K ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 76% of ECG Pro | Road to Mastery's written reviews are positive against 100% of CMS1600's.

ECG Pro | Road to Mastery ships an update every 9 days, CMS1600 every 6 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ECG Pro | Road to Mastery | CMS1600 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (3.7K ratings)](https://appshunter.io/ios/app/ecg-pro-road-to-mastery/id798663024/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/cms1600/id1620103169/reviews) |
| Number of ratings | **3.7K** | 2 |
| Positive reviews | 75.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 110 MB | 7 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [WMS, Inc](https://appshunter.io/developer/471623357) | [Contec Medical Systems Co., Ltd.](https://appshunter.io/developer/908936493) |

## What reviewers say

### ECG Pro | Road to Mastery

[App page](https://appshunter.io/ios/app/ecg-pro-road-to-mastery/id798663024)

Master ECG interpretation with real-world cases and interactive learning modes. This app offers detailed analysis of over 3,500 ECG recordings, helping healthcare professionals and students build confidence and sharpen their diagnostic skills.

**Highlights:** 3,500+ real 12-lead ECG cases, Raw waveform data at pixel-level detail, Expert interpretations with 100+ findings, Play Mode with audible heartbeat cues, Read Mode for self-paced interpretation, Browse and search by finding or waveform feature, 12x1, 6x2, or 4x3 lead layouts

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ECG Pro Monthly | $4.99 | per month |
| ECG Pro Yearly | $14.99 | per year |
| ECG Pro Yearly Family Sharing | $19.99 | per year |
| ECG Pro | $49.99 | one-time |
| ECG Pro + Family Sharing | $59.99 | one-time |

**What reviewers like**

- 👍 Very nice app
- 👍 Enjoyable and informative
- 👍 Great learning tool
- 👍 Excellent app for learning ECG
- 👍 Helpful for studying ECG rhythms

**What reviewers complain about**

- 💰 Premium needed for most features
- 🐛 Incorrect ECG interpretations
- 🐛 Lack of explanations for quiz answers
- 🐛 Doesn't work with older Apple Watches
- 🐛 Slow to provide real-time heart rate alerts

**Reported bugs**

- Inability to request refunds
- Setup issues with Verizon account requirement
- Crashes and freezes on certain devices

**Requested features**

- Ability to hide ECG interpretation results
- Option to set user profile (age, weight, etc.)
- Ability to favorite specific ECGs for quizzing
- Inclusion of 12-lead ECG examples
- Integration with Apple Watch for ECG recording


### CMS1600

[App page](https://appshunter.io/ios/app/cms1600/id1620103169)

This advanced wireless ultrasound imaging system provides real-time, clear color ultrasound images across multiple work modes. It supports a wide range of examinations and includes powerful image processing and patient management features. Connect wirelessly for greater freedom of use.

**Highlights:** Multiple work modes (B, CDFI, M, PW), Supports various examinations (abdominal, OB/GYN, vascular, cardiac), Powerful image processing and optimization, Image and video annotation, saving, and DICOM storage, Patient management system, Wireless WiFi connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is ECG Pro | Road to Mastery free?

ECG Pro | Road to Mastery is free to download, with in-app purchases available.

### Is CMS1600 free?

CMS1600 is free to download, with no in-app purchases.

### Which has better reviews, ECG Pro | Road to Mastery or CMS1600?

ECG Pro | Road to Mastery is rated higher. ECG Pro | Road to Mastery averages 4.5 out of 5 from 3.7K ratings, while CMS1600 averages 4.5 from 2 ratings.

### Do ECG Pro | Road to Mastery or CMS1600 have ads?

Neither ECG Pro | Road to Mastery nor CMS1600 shows ads.

### Which is updated more often, ECG Pro | Road to Mastery or CMS1600?

ECG Pro | Road to Mastery ships an update every 9 days, and CMS1600 every 6 months. Most recently, ECG Pro | Road to Mastery was updated on November 11, 2026 and CMS1600 on November 3, 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.*