# CathSource vs AngioAID 3D

The clearest difference is rating: AngioAID 3D at 4.0 against CathSource's 1.6. AngioAID 3D also leads on monetization model (ad-supported vs paid) and iOS requirement (15.0 vs 18.5). CathSource's advantage is ads (none vs shown) and update cadence (every 2 months vs every 28 months). On price, 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.

AngioAID 3D holds the better App Store score, 4.0 against 1.6. That said, the two scores are not equally well evidenced: CathSource has 23 ratings behind it against 1, so its average is the more settled of the two.

CathSource ships an update every 2 months, AngioAID 3D every 28 months. The most recent releases landed on September 18, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | CathSource | AngioAID 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (23 ratings)](https://appshunter.io/ios/app/cathsource/id420847275/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/angioaid-3d/id1639925845/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 28 months |
| Monetization | Paid | **Ad-supported** |
| Size | 79 MB | 92 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [ECGsource LLC](https://appshunter.io/developer/377139096) | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) |

## 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


### AngioAID 3D

[App page](https://appshunter.io/ios/app/angioaid-3d/id1639925845)

An interactive 3D simulation for learning diagnostic angiography of coronary arteries. Practice advancing catheters, manipulating views, and injecting dye in a realistic environment. Includes review modes with key anatomical and procedural information.

**Highlights:** 3D live simulation of coronary angiography, Interactive guidewire and catheter manipulation, Hemodynamic monitoring, C-Arm angle adjustment, Dye injection and cine comparison, Review Mode with anatomical insights, Tutorial video

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CathSource free?

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

### Is AngioAID 3D free?

AngioAID 3D is free to download, with no in-app purchases.

### Which has better reviews, CathSource or AngioAID 3D?

AngioAID 3D is rated higher. CathSource averages 1.6 out of 5 from 23 ratings, while AngioAID 3D averages 4.0 from 1 ratings.

### Do CathSource or AngioAID 3D have ads?

AngioAID 3D shows ads; CathSource does not.

### Which is updated more often, CathSource or AngioAID 3D?

CathSource ships an update every 2 months, and AngioAID 3D every 28 months. Most recently, CathSource was updated on September 18, 2026 and AngioAID 3D on June 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.*