CathSource vs Philips Venous IVUS Tutor
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.
Philips Venous IVUS Tutor
An interactive learning tool for healthcare professionals to master venous intravascular ultrasound interpretation. It offers simulations, measurement tools, and image interpretation guidance.
- IVUS pullback simulations
- Interactive measurements
- Image interpretation guide
- Additional resources and references
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Welcome to Venous IVUS Tutor app, an interactive program designed for health care professionals who want to learn the basics of venous intravascular ultrasound interpretation. Features: - IVUS pullback simulations and measurements using the interactive workflows - Image interpretation guide - Additional resources through links and references This application is the copyrighted property of Philips. It has been approved by Philips for the use of healthcare professionals. Please contact Philips if you wish to use this application for any other purpose.
Screenshots
Verdict
The clearest difference is rating: Philips Venous IVUS Tutor at 4.7 against CathSource's 1.6. Philips Venous IVUS Tutor also leads on monetization model (free vs paid) and review sentiment (50% vs 38%). CathSource's advantage is update cadence (every 2 months vs every 8 months). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Philips Venous IVUS Tutor holds the better App Store score, 4.7 against 1.6. Both are backed by a comparable volume of ratings — 23 and 14 respectively. Written reviews point the same way: 38% of CathSource's written reviews are positive against 50% of Philips Venous IVUS Tutor's.
CathSource ships an update every 2 months, Philips Venous IVUS Tutor every 8 months. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.
| Parameter | CathSource | Philips Venous IVUS Tutor |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (23 ratings) | 4.7 (14 ratings) — better |
| Positive reviews | 38.5% of reviews | 50.0% of reviews — better |
| Number of ratings | 23 — better | 14 |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.5 | 9.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 28 MB |
| Age rating | 12+ | 17+ |
| Developer | ECGsource LLC | Philips Electronics North America Corporation |
Customer experience
CathSource
Philips Venous IVUS Tutor
In-app purchases
CathSource
No in-app purchases
Philips Venous IVUS Tutor
No in-app purchases
Questions
Is CathSource free?
Is Philips Venous IVUS Tutor free?
Which has better reviews, CathSource or Philips Venous IVUS Tutor?
Do CathSource or Philips Venous IVUS Tutor have ads?
Which is updated more often, CathSource or Philips Venous IVUS Tutor?
Other comparisons
