# SnapECG vs Odmaster

The clearest difference is rating: Odmaster at 3.8 against SnapECG's 1.9. Odmaster also leads on review sentiment (29% vs 10%) and ratings volume (1.1K vs 40). SnapECG's advantage is iOS requirement (9.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Odmaster holds the better App Store score, 3.8 against 1.9. That said, the two scores are not equally well evidenced: Odmaster has 1.1K ratings behind it against 40, so its average is the more settled of the two. Written reviews point the same way: 10% of SnapECG's written reviews are positive against 29% of Odmaster's.

SnapECG ships an update every 6 weeks, Odmaster every 3 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SnapECG | Odmaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (40 ratings)](https://appshunter.io/ios/app/snapecg/id1304274390/reviews) | **[3.8 (1.1K ratings)](https://appshunter.io/ios/app/odmaster/id1512532413/reviews)** |
| Number of ratings | 40 | **1.1K** |
| Positive reviews | 9.8% of reviews | **28.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 41 MB | 96 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [南京先声医学诊断有限公司](https://appshunter.io/developer/1492451046) | [Guangzhou Billion Leiden Electronic Technology Co., Ltd.](https://appshunter.io/developer/1512532412) |

## What reviewers say

### SnapECG

[App page](https://appshunter.io/ios/app/snapecg/id1304274390)

This app transforms smartphone or tablet connections into an ECG recorder. It simplifies complex cardiac data into an easy-to-understand health report, empowering users to monitor their heart health.

**Highlights:** Connects to smartphone/tablet for ECG data, Generates easy-to-read health reports, Focuses on cardiac arrhythmia, Simplifies ECG data interpretation, Enables understanding of heart health

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works well for some users
- 👍 High quality ECG recording
- 👍 Effortless connection to smartphone
- 👍 Easy to send recordings to physician
- 👍 Fast high quality rhythm tracing

**What reviewers complain about**

- 🐛 Frequent network errors
- 🐛 Cannot create account/login
- 🐛 App crashes frequently
- 🐛 Device becomes useless without app
- 🐛 Poor app interface

**Reported bugs**

- Network error
- Cannot create account
- Cannot login
- App crashes
- Password not valid

**Requested features**

- Improve app interface
- Show connection status
- Default to last selected monitor type
- More detail on results
- Store personal information for reports


### Odmaster

[App page](https://appshunter.io/ios/app/odmaster/id1512532413)

This application allows users to program various radio models directly from their mobile phones, eliminating the need for a computer. It offers a convenient and portable solution for radio programming and includes a community feature for sharing content and interacting with other users.

**Highlights:** Program radio with mobile phone, Supports multiple radio models, Convenient and portable programming, Community sharing and interaction, Help Center and direct support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Convenient mobile programming
- 💡 Helpful community features

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Poor account registration process
- 🔋 High battery drain
- 👎 Unreliable Bluetooth connectivity

**Reported bugs**

- Unable to read or write radio data
- Inconsistent behavior across iOS versions
- Login and account issues

**Requested features**

- Support for more radio models
- Ability to save and load custom channel configurations
- Improved user interface and navigation


## Frequently asked questions

### Is SnapECG free?

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

### Is Odmaster free?

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

### Which has better reviews, SnapECG or Odmaster?

Odmaster is rated higher. SnapECG averages 1.9 out of 5 from 40 ratings, while Odmaster averages 3.8 from 1.1K ratings.

### Do SnapECG or Odmaster have ads?

Neither SnapECG nor Odmaster shows ads.

### Which is updated more often, SnapECG or Odmaster?

SnapECG ships an update every 6 weeks, and Odmaster every 3 weeks. Most recently, SnapECG was updated on October 10, 2026 and Odmaster on October 15, 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.*