CathSource vs EPLog
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
Read full descriptionHide 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.
EPLog
Read full descriptionHide full description
EPLog is a personal case logging app for electrophysiology procedures. Track ablations, device implants, and cardiovascular interventions with detailed procedural data, CHA₂DS₂-VASc scoring, and PDF case report export.
Screenshots
Verdict
The clearest difference is price: CathSource at Free against EPLog's $0.99. On update cadence, ads, in-app purchases 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; EPLog costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CathSource ships an update every 2 months, EPLog every 4 months. The most recent releases landed on September 18, 2026 and September 15, 2026 respectively.
| Parameter | CathSource | EPLog |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 1.6 (23 ratings) — better | — |
| Positive reviews | 42.9% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 18.1 — better |
| Further details — not scored | ||
| Size | 79 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | ECGsource LLC | Matthew Segar |
In-app purchases
CathSource
No in-app purchases
EPLog
No in-app purchases









