CathSource vs TEE Standard Views
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CathSource
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.
- 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
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CathSource (from the creators of ECGsource) is an up-to-date medical reference devoted exclusively to cardiac catheterization and angiography. Developed by practicing Interventional Cardiologists for both specialists and trainees in the field of cardiovascular disease, CathSource offers the following content: * Searchable index of specialized topics including: Normal Coronary Anatomy Anomalous Coronary Arteries Coronary Artery Aneurysms Myocardial Bridging Takotsubo Cardiomyopathy Plaque Rupture & Thrombus Standard Views of Angiography Left Ventriculography Coarctation of the Aorta Femoral Artery Access for Angiography Radial Artery Access for Angiography Intravascular Ultrasound (IVUS) Optical Coherence Tomography (OCT) Fractional Flow Reserve (FFR) Hemodynamics: Intracardiac Pressures Hemodynamics: Intracardiac Waveforms Hemodynamics: Cardiac Output Hemodynamics: Intracardiac Shunts Hemodynamics: Aortic Stenosis Hemodynamcis: Aortic Regurgitation Hemodynamics: Mitral Stenosis Hemodynamcis: Mitral Regurgitation Hemodynamcis: Constriction Hemodynamics: Restriction * Searchable database containing more than 30 videos (coronary angiograms, ventriculograms, and aortograms) of both common and rare findings in the cardiac catheterization lab * Searchable database of over 65 images including hemodynamic formulas, tables, and figures CathSource provides a detailed overview of important cardiac catheterization and angiography topics, incorporating educational images/videos as well as reviews of pertinent medical literature. CathSource is the ideal application to assist you in understanding and recognizing cardiovascular pathology in the catheterization lab.
TEE Standard Views
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.
- Visualize 3D cardiac structures
- Explore 20 standard TEE views
- Rotate 3D heart and probe models
- Align 3D models with TEE recordings
- Assess cardiac function
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The primary challenge in learning transesophageal echocardiography (TEE) is translating the two dimensional echocardiographic image into a visualization of the three-dimensional (3D) structure of the heart. We have created this application to assist with teaching and learning the assessment of cardiac function with TEE. Users can view the TEE recordings for each of the 20 standard diagnostic views and see the corresponding 3D model of the heart, the TEE probe, and the ultrasound plane. Each TEE view can be selected from a menu at the left of the screen, or by using arrow buttons to go to the next or previous view in the list. For each TEE view, the 3D model of the heart, probe, ultrasound plane, heart can be rotated in the horizontal or vertical plane to view it from any angle. The part of the heart above the echo plane can be removed, and the heart model can be oriented so the structures correspond to the TEE image.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | CathSource | TEE Standard Views |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 1.6 (24 ratings) | 3.8 (8 ratings) — better |
| Positive reviews | 40.0% of reviews | 83.3% of reviews — better |
| Number of ratings | 24 — better | 8 |
| Update frequency | Every 2 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 18.5 | 6.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 60 MB |
| Age rating | 12+ | 4+ |
| Developer | ECGsource LLC | University Health Network |
Customer experience
CathSource
TEE Standard Views
In-app purchases
CathSource
No in-app purchases
TEE Standard Views
No in-app purchases








