# CathSource vs GHA

The clearest difference is update cadence: GHA at daily against CathSource's every 2 months. GHA also leads on iOS requirement (12.0 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.

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

CathSource ships an update every 2 months, GHA daily. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CathSource | GHA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (23 ratings)](https://appshunter.io/ios/app/cathsource/id420847275/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Paid | — |
| Size | 79 MB | 30 MB |
| Requires iOS | 18.5 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ECGsource LLC](https://appshunter.io/developer/377139096) | [Adnan Ashraf](https://appshunter.io/developer/1212120305) |

## What reviewers say

### CathSource

[App page](https://appshunter.io/ios/app/cathsource/id420847275)

A comprehensive medical reference focused on cardiac catheterization and angiography. It offers a searchable index of specialized topics, a database of videos of common and rare findings, and a collection of images including hemodynamic formulas and tables.

**Highlights:** Searchable index of cardiac catheterization topics, Database of coronary angiogram, ventriculogram, and aortogram videos, Image database with hemodynamic formulas and tables, Covers common and rare cardiovascular pathologies, Developed by practicing Interventional Cardiologists

**Features:** macOS Compatibility

**In-app purchases:** none


### GHA

[App page](https://appshunter.io/ios/app/gha-scai-2025/id6740776450)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CathSource free?

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

### Is GHA free?

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

### Do CathSource or GHA have ads?

Neither CathSource nor GHA shows ads.

### Which is updated more often, CathSource or GHA?

CathSource ships an update every 2 months, and GHA daily. Most recently, CathSource was updated on October 12, 2026 and GHA on October 2, 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.*