# CathSource vs TEE Alternative Views

The clearest difference is price: CathSource at Free against TEE Alternative Views's $4.99. CathSource also leads on ratings volume (23 vs 1) and update cadence (every 2 months vs every 6 months). TEE Alternative Views's advantage is rating (4.0 vs 1.6) and review sentiment (50% vs 38%). On ads, in-app purchases, monetization model and device support there is nothing between them.

CathSource is free to download; TEE Alternative Views costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TEE Alternative Views 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. Written reviews point the same way: 38% of CathSource's written reviews are positive against 50% of TEE Alternative Views's.

CathSource ships an update every 2 months, TEE Alternative Views every 6 months. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | CathSource | TEE Alternative Views |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [1.6 (23 ratings)](https://appshunter.io/ios/app/cathsource/id420847275/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/tee-alternative-views/id738646958/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 38.5% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | Paid |
| Size | 79 MB | 70 MB |
| Requires iOS | 18.5 | **6.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 12+ | 4+ |
| Developer | [ECGsource LLC](https://appshunter.io/developer/377139096) | [University Health Network](https://appshunter.io/developer/361257574) |

## 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


### TEE Alternative Views

[App page](https://appshunter.io/ios/app/tee-alternative-views/id738646958)

This app offers a unique learning environment for understanding complex 3D heart structures through 19 non-standard 2D echocardiographic views. It combines a rotatable 3D heart model with associated TEE clips, allowing users to visualize internal cardiac anatomy and perform more comprehensive studies.

**Highlights:** 19 non-standard 2D TEE views, Rotatable 3D heart model, Interactive echocardiographic plane, TEE clip visualization, Internal cardiac structure reveal, Enhanced TEE study learning

**In-app purchases:** none


## Frequently asked questions

### Is CathSource free?

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

### Is TEE Alternative Views free?

TEE Alternative Views costs $4.99, with no in-app purchases.

### Which has better reviews, CathSource or TEE Alternative Views?

TEE Alternative Views is rated higher. CathSource averages 1.6 out of 5 from 23 ratings, while TEE Alternative Views averages 4.0 from 1 ratings.

### Do CathSource or TEE Alternative Views have ads?

Neither CathSource nor TEE Alternative Views shows ads.

### Which is updated more often, CathSource or TEE Alternative Views?

CathSource ships an update every 2 months, and TEE Alternative Views every 6 months. Most recently, CathSource was updated on October 18, 2026 and TEE Alternative Views on October 3, 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.*