# DGK.Online vs Echolism

The clearest difference is in-app purchases: DGK.Online at none against Echolism's 12. DGK.Online also leads on device support (3 vs 1) and iOS requirement (10.0 vs 16.4). Echolism's advantage is update cadence (monthly vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Echolism sells 12 in-app purchases, starting at $3.99 per month. DGK.Online asks for nothing beyond the download.

DGK.Online ships an update every 2 months, Echolism monthly. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | DGK.Online | Echolism |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (8 ratings)](https://appshunter.io/ios/app/echolism/id6467902813/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 154 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Deutsche Gesellschaft fur Kardiologie - Herz- und Kreislaufforschung e.V.](https://appshunter.io/developer/1350740763) | [SchallFIT OG](https://appshunter.io/developer/1708877127) |

## What reviewers say

### DGK.Online

[App page](https://appshunter.io/ios/app/dgkonline/id1527243295)

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

**In-app purchases:** none


### Echolism

[App page](https://appshunter.io/ios/app/echolism/id6467902813)

Master echocardiography and assess left ventricular function with advanced learning techniques. This pocket-sized tool offers self-quizzing and spaced repetition for efficient learning anytime, anywhere.

**Highlights:** Learn echocardiography, Assess left ventricular function, Self-quizzing, Spaced repetition, Pocket-sized learning

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echolism Pro | $3.99 | per month |
| Echolism Pro | $3.99 | per month |
| Echolism Pro | $3.99 | per month |
| Echolism Pro | $5.99 | per month |
| Echolism Pro | $5.99 | per month |
| Echolism Pro | $5.99 | per month |
| Echolism Pro | $22.00 | per year |
| Echolism Pro | $22.00 | per year |
| Echolism Pro | $22.00 | per year |
| Echolism Pro | $45.00 | per year |
| Echolism Pro | $45.00 | per year |
| Echolism Pro | $45.00 | per year |


## Frequently asked questions

### Is DGK.Online free?

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

### Is Echolism free?

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

### Do DGK.Online or Echolism have ads?

Neither DGK.Online nor Echolism shows ads.

### Which is updated more often, DGK.Online or Echolism?

DGK.Online ships an update every 2 months, and Echolism monthly. Most recently, DGK.Online was updated on October 4, 2026 and Echolism on October 11, 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.*