Comparison

Call Schedule vs CathSource

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

Head to head
About

Call Schedule

View physician call schedules prepared via a web account. Access your group's schedule on mobile devices using your account credentials. Suitable for physician groups and any team sharing on-call duties.

Highlights
  • View call schedules
  • Manual schedule preparation
  • Rule-based schedule generation
  • Web account integration
  • Mobile access
  • Supports physician groups
Features
Read full description

Call Schedule is a Schedule Viewer. Manual or Rule-based Call Schedules can be prepared for a small physician group or for large multi-specialty groups through a account on our website https://callschedule.us. The schedule can then be viewed on your mobile devices using your account number and schedule name as credentials. This application is ideally suited for physician call groups but will work equally well for any group that shares call.

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.

Screenshots

Call Schedule4 screens
CathSource4 screens

Verdict

The call

Call Schedule and CathSource both sit at 1.7 stars, but that hides the real split: 38% of CathSource's written reviews are positive against 0% of Call Schedule's. CathSource also leads on in-app purchases (none vs 5). Call Schedule's advantage is iOS requirement (11.0 vs 18.5). On price, rating, ratings volume and update cadence 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. Call Schedule sells 4 one-off in-app purchases. CathSource asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 1.7 for Call Schedule against 1.6 for CathSource. Both are backed by a comparable volume of ratings — 9 and 23 respectively. Written reviews are what separate them: 0% of Call Schedule's written reviews are positive against 38% of CathSource's.

UpkeepUpdate frequency

Call Schedule ships an update every 3 months, CathSource every 2 months. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
Call Schedule versus CathSource: the parameters behind the verdict, then further details
ParameterCall ScheduleCathSource
PriceFreeFree
Rating1.7 (9 ratings) — better1.6 (23 ratings)
Positive reviews0.0% of reviews38.5% of reviews — better
Number of ratings923 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.5
Further details — not scored
Size14 MB79 MB
Age rating4+12+
DeveloperAMC Logic LTDECGsource LLC

Customer experience

Call Schedule

All ratings9 ratings
Positive11.1%
Neutral11.1%
Negative77.8%
Written reviews9 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CathSource

All ratings23 ratings
Positive8.7%
Neutral8.7%
Negative82.6%
Written reviews39 reviews
Positive38.5%
Neutral7.7%
Negative53.8%

In-app purchases

4 purchases

Call Schedule

One-time4
  • Registration & Web Viewing$0.99
  • Renew for one month$1.99
  • Renew for three months$3.99
Show 1 more
  • Renew for one year2 variants$9.99
None

CathSource

No in-app purchases

Questions

Is Call Schedule free?
Call Schedule is free to download, with in-app purchases available.
Is CathSource free?
CathSource is free to download, with no in-app purchases.
Which has better reviews, Call Schedule or CathSource?
Call Schedule is rated higher. Call Schedule averages 1.7 out of 5 from 9 ratings, while CathSource averages 1.6 from 23 ratings.
Do Call Schedule or CathSource have ads?
Neither Call Schedule nor CathSource shows ads.
Which is updated more often, Call Schedule or CathSource?
Call Schedule ships an update every 3 months, and CathSource every 2 months. Most recently, Call Schedule was updated on September 30, 2026 and CathSource on October 12, 2026.

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