# Blood pH vs Echodex

The clearest difference is ratings volume: Blood pH at 28 against Echodex's 1. Echodex's advantage is price ($0.99 vs $1.99) and iOS requirement (15.0 vs 26). On rating, ads, in-app purchases and device support there is nothing between them.

Blood pH costs $1.99 and Echodex $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Blood pH against 5.0 for Echodex. That said, the two scores are not equally well evidenced: Blood pH has 28 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Blood pH | Echodex |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | [5.0 (28 ratings)](https://appshunter.io/ios/app/blood-ph/id969869431/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/echodex-tte-reference-guide/id6797169420/reviews) |
| Number of ratings | **28** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | **Free** |
| Size | 7 MB | 2 MB |
| Requires iOS | 26 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Remarkable Edge, Lda](https://appshunter.io/developer/532882990) | [Robert Burgese](https://appshunter.io/developer/6792183243) |

## What reviewers say

### Blood pH

[App page](https://appshunter.io/ios/app/blood-ph/id969869431)

This medical app helps healthcare professionals quickly diagnose acid-base disorders in patients. It visualizes patient data on an interactive graph and offers tools to calculate Anion Gap and A-a Difference for better characterization of disturbances. Users can store and track patient evolutions graphically and share reports as PDFs.

**Highlights:** Interactive color graph for acid-base disorders, Graphical tracking of patient evolution, Anion Gap and A-a Difference calculators, Store and compare previous disturbances, Share graphs as PDF reports, Support for mmHg or KPa pressure units

**Features:** Vision Pro support

**In-app purchases:** none


### Echodex

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

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 Blood pH free?

Blood pH costs $1.99, with no in-app purchases.

### Is Echodex free?

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

### Which has better reviews, Blood pH or Echodex?

Blood pH and Echodex are both rated 5.0 out of 5 on the App Store, from 28 and 1 ratings respectively.

### Do Blood pH or Echodex have ads?

Neither Blood pH 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.*