# CathSource vs TEE Standard Views

The clearest difference is price: CathSource at Free against TEE Standard Views's $4.99. CathSource also leads on update cadence (every 2 months vs every 9 months) and ratings volume (24 vs 8). TEE Standard Views's advantage is review sentiment (83% vs 40%) and rating (3.8 vs 1.6). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

TEE Standard Views holds the better App Store score, 3.8 against 1.6. Both are backed by a comparable volume of ratings — 24 and 8 respectively. Written reviews point the same way: 40% of CathSource's written reviews are positive against 83% of TEE Standard Views's.

CathSource ships an update every 2 months, TEE Standard Views every 9 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | CathSource | TEE Standard Views |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [1.6 (24 ratings)](https://appshunter.io/ios/app/cathsource/id420847275/reviews) | **[3.8 (8 ratings)](https://appshunter.io/ios/app/tee-standard-views/id653647341/reviews)** |
| Number of ratings | **24** | 8 |
| Positive reviews | 40.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 79 MB | 60 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, Vision Pro support

**In-app purchases:** none


### TEE Standard Views

[App page](https://appshunter.io/ios/app/tee-standard-views/id653647341)

This application aids in learning transesophageal echocardiography by visualizing 3D cardiac structures from 2D echocardiographic images. Users can explore standard diagnostic views, rotate 3D heart models, and align them with TEE recordings to understand cardiac function.

**Highlights:** Visualize 3D cardiac structures, Explore 20 standard TEE views, Rotate 3D heart and probe models, Align 3D models with TEE recordings, Assess cardiac function

**In-app purchases:** none


## Frequently asked questions

### Is CathSource free?

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

### Is TEE Standard Views free?

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

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

TEE Standard Views is rated higher. CathSource averages 1.6 out of 5 from 24 ratings, while TEE Standard Views averages 3.8 from 8 ratings.

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

Neither CathSource nor TEE Standard Views shows ads.

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

CathSource ships an update every 2 months, and TEE Standard Views every 9 months. Most recently, CathSource was updated on November 1, 2026 and TEE Standard Views on November 6, 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.*