# EchoLab vs ABG Pro

The clearest difference is review sentiment: ABG Pro at 100% against EchoLab's 75%. ABG Pro also leads on price ($1.99 vs $4.99) and update cadence (every 2 months vs every 4 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

EchoLab costs $4.99 and ABG Pro $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EchoLab ships an update every 4 months, ABG Pro every 2 months. Both last shipped on November 10, 2026.

## The numbers

| Metric | EchoLab | ABG Pro |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/abg-pro/id493840595/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 46 MB | 3 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Medical Appware, LLC](https://appshunter.io/developer/427460808) | [GDA Software](https://appshunter.io/developer/493839619) |

## What reviewers say

### EchoLab

[App page](https://appshunter.io/ios/app/echolab/id427460805)

This app provides a comprehensive framework for teaching and performing quantitative echocardiography. It offers a wide array of calculations, graphical displays of equations, and integrates current guidelines for a cohesive overview of cardiac ultrasound analysis. A companion Apple Watch app is also included for on-the-go reference.

**Highlights:** Quantitative echocardiography calculations, Integration of ASE/EACVI guidelines, Analytic Engine for synthesized results, Companion Apple Watch app, Graphical display of equations, Medical literature references with hyperlinks, Wide array of echocardiographic calculations

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### ABG Pro

[App page](https://appshunter.io/ios/app/abg-pro/id493840595)

This medical app assists nurses, doctors, and students in interpreting arterial blood gases and osmolar gaps. It offers calculations for A-a gradient, anion gap, and more, with differential diagnoses for acid-base disorders. The tool allows for custom normal ranges and corrects the anion gap for albumin.

**Highlights:** A-a Gradient Calculator, Arterial Blood Gas Interpretation, Osmolar Gap Calculation, Differential Diagnosis, Custom Normal Ranges, Anion Gap Correction for Albumin

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

**In-app purchases:** none


## Frequently asked questions

### Is EchoLab free?

EchoLab costs $4.99, with no in-app purchases.

### Is ABG Pro free?

ABG Pro costs $1.99, with no in-app purchases.

### Do EchoLab or ABG Pro have ads?

Neither EchoLab nor ABG Pro shows ads.

### Which is updated more often, EchoLab or ABG Pro?

EchoLab ships an update every 4 months, and ABG Pro every 2 months. Most recently, EchoLab was updated on November 10, 2026 and ABG Pro on November 10, 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.*