Comparison

CathSource vs RCIS Study Guide

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

RCIS Study Guide

Prepare for the RCIS exam with a comprehensive study tool. Access hundreds of practice questions covering cardiology topics, review study materials, and analyze your performance with detailed results and customizable exam lengths. Includes image recognition practice with angiograms and waveforms.

Highlights
  • Hundreds of cardiology practice questions
  • Review study materials
  • Image recognition with angiograms/waveforms
  • Timed practice exams
  • Immediate feedback on answers
  • Exam results and score tracking
  • Multiple exam lengths
Features
Currently charting
Read full description

Studying for that pesky RCIS Exam? Check out this brand new app designed specifically for Cath Lab staff members looking to take their knowledge to the next step! Take HUNDREDS of questions over Cardiology topics such as: Hemodynamics, anatomy, equipment, invasive procedures, medical terminology, etc... Special Features: • Study Material: Review for the RCIS by reading material on a variety of topics like Hemodynamics, Formulas, Anatomy, and others. • Images: View angiograms and waveforms to answer certain questions and improve your image recognition skills! • Timer: Take a practice exam with the timer to simulate a real life test experience, or turn it off and take an exam at your own pace. • Question Results: Get immediate feedback if you get the answer correct or incorrect. See what the correct answer was so you can learn for next time! • Exam Results: See your last score and average scores to see your trends. Are you on track to pass the RCIS Exam? • Multiple Length Exams: Only have 10 minutes to study? Try a 20 Question exam to keep things quick. Have more time? Try the 125 Question exam to build your test taking endurance! Like us on facebook: https://www.facebook.com/RCISStudyGuide/ ****************** Terms of Service: This app, RCIS Study Guide, is designed to supplement other knowledge and experience in the Cath Lab and should NOT be used as a sole study aid for the RCIS exam from Cardiovascular Credentialing International (CCI). Formal education and clinical experience should be the primary source for information in preparation for this exam. Due to the ever-changing nature of the medical field and its products, trials, procedures, techniques, etc. the answers to these questions should NOT be applied in medical practice. The developer of this app cannot accept any responsibility for any errors in information that is presented. You, the user, are accepting to use this app, RCIS Study Guide, “AS IS” and completely understand and agree to not hold the developer accountable for any information, or lack of information, found in this app. By accepting these terms you, the user, agree to not hold the developer of this app responsible for any RCIS exam results, passing or failing, and completely understand that this app is not affiliated with Cardiovascular Credentialing International (CCI) in any way. This app, RCIS Study Guide, is to be used for personal use only and should not be copied. The user agrees to use this app as is, and will not hold the developer accountable for any results from any real life tests/exams, i.e. RCIS exam from CCI. The user will not apply the information found in this app in real-life scenarios on people. This app takes no responsibility for anything other than personal use by the user. This app is provided “AS IS”, without warranty of any kind, express or implied. In no event shall the developer be liable for any claim, damages or other liability in any way in connection with this app and the information it contains. The RCIS Study Guide App does not endorse any specific company, product, device, or brand. Some content in this app may reference certain companies, products, devices, or brands, however this does not indicate any relationship or affiliation with such company, product, device, or brand.

Screenshots

CathSource4 screens
RCIS Study Guide4 screens

Verdict

The call

The clearest difference is price: CathSource at Free against RCIS Study Guide's $9.99. RCIS Study Guide's advantage is rating (4.7 vs 1.6) and update cadence (fortnightly vs every 2 months). On review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

CathSource is free to download; RCIS Study Guide costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RCIS Study Guide holds the better App Store score, 4.7 against 1.6. That said, the two scores are not equally well evidenced: RCIS Study Guide has 451 ratings behind it against 23, so its average is the more settled of the two. Written reviews complicate that: 43% of CathSource's written reviews are positive against 35% of RCIS Study Guide's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

CathSource ships an update every 2 months, RCIS Study Guide fortnightly. The most recent releases landed on September 18, 2026 and October 4, 2026 respectively.

Scorecard7 real differences · 4 level
CathSource versus RCIS Study Guide: the parameters behind the verdict, then further details
ParameterCathSourceRCIS Study Guide
PriceFree — better$9.99
Rating1.6 (23 ratings)4.7 (451 ratings) — better
Positive reviews42.9% of reviews — better35.3% of reviews
Number of ratings23451 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#45 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.511.1 — better
Further details — not scored
Size79 MB96 MB
Age rating12+12+
DeveloperECGsource LLCJared Lapointe

Customer experience

CathSource

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

RCIS Study Guide

All ratings451 ratings
Positive92.9%
Neutral4.4%
Negative2.7%
Written reviews17 reviews
Positive35.3%
Neutral41.2%
Negative23.5%

Bugs and requests

CathSource

Not enough reviews yet to summarise bugs or requests.

RCIS Study Guide

Reported bugs

2 issues
  • App crashes on newer iOS versions
  • Study portion is a joke

Requested features

10 requests
  • Add explanations for wrong answers
  • More information in study material
  • Ability to review missed questions
  • Option to test on specific subjects
  • More questions in general
Show 5 more
  • Update for newer iOS versions
  • Show correct answer for last question
  • Feedback at the end of exams
  • Way to flag questions for review
  • More variety in equipment information

In-app purchases

None

CathSource

No in-app purchases

None

RCIS Study Guide

No in-app purchases

Questions

Is CathSource free?
CathSource is free to download, with no in-app purchases.
Is RCIS Study Guide free?
RCIS Study Guide costs $9.99, with no in-app purchases.
Which has better reviews, CathSource or RCIS Study Guide?
RCIS Study Guide is rated higher. CathSource averages 1.6 out of 5 from 23 ratings, while RCIS Study Guide averages 4.7 from 451 ratings.
Do CathSource or RCIS Study Guide have ads?
Neither CathSource nor RCIS Study Guide shows ads.
Which is updated more often, CathSource or RCIS Study Guide?
CathSource ships an update every 2 months, and RCIS Study Guide fortnightly. Most recently, CathSource was updated on September 18, 2026 and RCIS Study Guide on October 4, 2026.

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