CathSource vs Cathlas
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.
Cathlas
This medical reference app provides a collection of rare and important video images related to coronary angiography. It allows users to contribute educational content, which is then reviewed by experts before publication. The app serves as a practical aid for interventional cardiology professionals.
- Rare and important video images
- Coronary artery anatomy
- Complication recognition
- Congenital heart disease
- Mechanical valve fluoroscopies
- Intracoronary imaging
- Diagnostic skill practice
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The progress of technology allows for the delivery of a collection of rare and important video images to users in a practical way that cannot be similarly produced via textbooks or peer-reviewed journals. The app is designed to cultivate and integrate contributions from users who would like to add educational images, videos and data that will enrich the knowledge of the interventional cardiology peers community. The moderation and inclusion of images will be processed by experts in the field prior to their publication online. DISCLAIMER: Cathlas has been developed as a reference aid only, and no guarantees are made regarding the completeness or adequacy of the representations shown and information conveyed by the app. The app will not be liable for any claims arising from its use. Please seek a doctor's advice in addition to using the app and before making any medical decisions. This app does not contain any personal information. Cathlas includes angiographic videos in various topics – for example: Anatomy of coronary arteries with focus on coronary anomalies • Coronary angiography videos with corresponding CT images • Explore and learn to recognize complications • Images of congenital heart disease and right heart catheterization hemodynamics • Unique images of coronary bypass grafting and acute coronary syndrome • Left ventriculogram and aortogram • Mechanical valve fluoroscopies – learn to recognize different valves, normal angels of opening and closing • Intracoronary imaging with intravascular ultrasound and optical coherence tomography images • How to recognize device in fluoroscopy • Rare and important incidental findings on fluoroscopy • Structural cases of TAVR, mitral clip, TMVR, Watchman… • Practice your diagnostic skills with set of heart catheterization videos • Explore high-quality heart catheterization images
Screenshots
Verdict
The clearest difference is review sentiment: Cathlas at 100% against CathSource's 43%. Cathlas also leads on rating (5.0 vs 1.6) and monetization model (free vs paid). 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.
Cathlas holds the better App Store score, 5.0 against 1.6. Both are backed by a comparable volume of ratings — 23 and 18 respectively. Written reviews point the same way: 43% of CathSource's written reviews are positive against 100% of Cathlas's.
| Parameter | CathSource | Cathlas |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (23 ratings) | 5.0 (18 ratings) — better |
| Positive reviews | 42.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | 18 |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.5 | 13.0 — better |
| Further details — not scored | ||
| Size | 79 MB | 31 MB |
| Age rating | 12+ | 17+ |
| Developer | ECGsource LLC | Spectre Software Inc. |
Customer experience
CathSource
Cathlas
In-app purchases
CathSource
No in-app purchases
Cathlas
No in-app purchases






