# Echo Calculate vs Echodex

The clearest difference is price: Echo Calculate at Free against Echodex's $0.99. Echodex's advantage is in-app purchases (none vs 1) and chart position (#199 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Echo Calculate is free to download; Echodex costs $0.99 up front. Echo Calculate sells 1 one-off in-app purchase. Echodex asks for nothing beyond the download.

## The numbers

| Metric | Echo Calculate | Echodex |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/echodex-tte-reference-guide/id6797169420/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | — | Free |
| Best chart rank | — | **#199** |
| Size | 26 MB | 2 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Gundogan Emre](https://appshunter.io/developer/1651146056) | [Robert Burgese](https://appshunter.io/developer/6792183243) |

## What reviewers say

### Echo Calculate

[App page](https://appshunter.io/ios/app/echo-calculate/id1660468437)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Calculate Premium | $3.99 | one-time |


### Echodex

[App page](https://appshunter.io/ios/app/echodex-tte-reference-guide/id6797169420)

**Currently charting:** #199 Top Paid · Medical (US App Store)

This medical reference app provides quick access to echocardiography normal values, organized by category and color-coded for easy understanding. It's designed for clinicians and trainees to reference essential data offline, with all values fully cited from major guidelines.

**Highlights:** Color-coded reference sections, Severity ramps for quick assessment, Starred cards for quick access, Offline functionality, Full citation of all values, Light and dark themes

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo Calculate free?

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

### Is Echodex free?

Echodex costs $0.99, with no in-app purchases.

### Do Echo Calculate or Echodex have ads?

Neither Echo Calculate nor Echodex shows ads.

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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.*