Comparison

CathSource vs Philips Coronary IVUS Tutor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

Philips Coronary IVUS Tutor

An interactive program for healthcare professionals to learn the fundamentals of coronary intravascular ultrasound. It offers simulated IVUS pullbacks, an image interpretation guide, and a knowledge check quiz to enhance understanding of vessel morphologies.

Highlights
  • Simulate IVUS pullbacks and measurements
  • Interactive workflow
  • Image interpretation guide
  • Identify vessel morphologies
  • Knowledge check quiz
Read full description

Welcome to Coronary IVUS Tutor app, an interactive program designed for cardiovascular health care professionals who want to learn the basics of coronary intravascular ultrasound. Foundational basics of coronary intravascular ultrasound • Simulate IVUS pullbacks and measurements using the interactive workflow • View the image interpretation guide and learn how to quickly identify common vessel morphologies • Test yourself with the knowledge check quiz 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

CathSource4 screens
Philips Coronary IVUS Tutor4 screens

Verdict

The call

The clearest difference is rating: Philips Coronary IVUS Tutor at 4.1 against CathSource's 1.6. Philips Coronary IVUS Tutor also leads on monetization model (free vs paid) and iOS requirement (15.0 vs 18.5). CathSource's advantage is update cadence (every 2 months vs every 13 months) and ratings volume (23 vs 7). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Philips Coronary IVUS Tutor holds the better App Store score, 4.1 against 1.6. Both are backed by a comparable volume of ratings — 23 and 7 respectively. Written reviews point the same way: 43% of CathSource's written reviews are positive against 50% of Philips Coronary IVUS Tutor's.

UpkeepUpdate frequency

CathSource ships an update every 2 months, Philips Coronary IVUS Tutor every 13 months. The most recent releases landed on September 18, 2026 and September 7, 2026 respectively.

Scorecard5 real differences · 5 level
CathSource versus Philips Coronary IVUS Tutor: the parameters behind the verdict, then further details
ParameterCathSourcePhilips Coronary IVUS Tutor
PriceFreeFree
Rating1.6 (23 ratings)4.1 (7 ratings) — better
Positive reviews42.9% of reviews50.0% of reviews — better
Number of ratings23 — better7
Update frequencyEvery 2 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.515.0 — better
Further details — not scored
Size79 MB21 MB
Age rating12+17+
DeveloperECGsource LLCPhilips Electronics North America Corporation

Customer experience

CathSource

All ratings23 ratings
Positive8.7%
Neutral8.7%
Negative82.6%
Written reviews35 reviews
Positive42.9%
Neutral8.6%
Negative48.6%

Philips Coronary IVUS Tutor

All ratings7 ratings
Positive71.4%
Neutral14.3%
Negative14.3%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

In-app purchases

None

CathSource

No in-app purchases

None

Philips Coronary IVUS Tutor

No in-app purchases

Questions

Is CathSource free?
CathSource is free to download, with no in-app purchases.
Is Philips Coronary IVUS Tutor free?
Philips Coronary IVUS Tutor is free to download, with no in-app purchases.
Which has better reviews, CathSource or Philips Coronary IVUS Tutor?
Philips Coronary IVUS Tutor is rated higher. CathSource averages 1.6 out of 5 from 23 ratings, while Philips Coronary IVUS Tutor averages 4.1 from 7 ratings.
Do CathSource or Philips Coronary IVUS Tutor have ads?
Neither CathSource nor Philips Coronary IVUS Tutor shows ads.
Which is updated more often, CathSource or Philips Coronary IVUS Tutor?
CathSource ships an update every 2 months, and Philips Coronary IVUS Tutor every 13 months. Most recently, CathSource was updated on September 18, 2026 and Philips Coronary IVUS Tutor on September 7, 2026.

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