Comparison

EF vs Echo Calculate

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

Head to head
About

EF

Features
Read full description

EF: ejection fraction, an iPhone and Apple Watch application, can calculate ejection fraction easily. Teichholz formula is used to calculate EF.

About

Echo Calculate

Features
Read full description

Echo Calculate is a clinical reference and calculation tool designed for echocardiography and cardiovascular assessment workflows. Quickly access structured calculators, reference ranges, patient measurement tracking, and trend-based follow-up tools in one place. KEY FEATURES Clinical Calculators Access organised calculation categories for: • Aortic, mitral, pulmonary and tricuspid valve assessment • Hemodynamics • Left ventricular function • Right ventricular function • Diastolic function • Body size calculations • Chamber size and indexing • Regurgitation assessment • Doppler utilities Patient Measurement Tracking Create local patient profiles and record dated cardiovascular measurements over time. Track values such as: • Aortic Valve Area (AVA) • Mitral Valve Area (MVA) • Pressure gradients • Body Surface Area (BSA) • Body Mass Index (BMI) • Doppler measurements • Chamber measurements • Additional echocardiographic parameters Follow-Up Overview Echo Calculate organises patient records into a clear follow-up overview, helping users review stored measurements and identify which records may require closer attention. Automatic Reports Generate structured summaries from saved measurements. Reports combine dated records, measurement values and trend information into an easy-to-read format. Clinical Reference Ranges Access organised cardiovascular reference ranges and supporting information directly inside the app. Fast Search Quickly find calculations and measurements using familiar abbreviations and terms such as AVA, EF, RVSP, PISA, E/e′ and more. Multi-Language Support Use the app in multiple supported languages through the built-in language selector. Designed for Practical Use Echo Calculate features a clean, structured interface designed for fast access during study, education and professional clinical workflows. IMPORTANT MEDICAL DISCLAIMER Echo Calculate is intended as a calculation, education and clinical reference support tool. It does not provide a medical diagnosis and does not replace professional clinical judgement, medical examination, official guidelines or advice from a qualified healthcare professional. All calculated results and generated reports must be independently reviewed and interpreted in the context of the complete clinical picture. For medical concerns or emergencies, contact a qualified healthcare professional or emergency service.

Screenshots

EF1 screens
Echo Calculate4 screens

Verdict

The call

The clearest difference is in-app purchases: EF at none against Echo Calculate's 1. EF also leads on iOS requirement (12.0 vs 15.6). Echo Calculate's advantage is update cadence (every 6 months vs every 48 months). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Echo Calculate sells 1 one-off in-app purchase. EF asks for nothing beyond the download.

UpkeepUpdate frequency

EF ships an update every 48 months, Echo Calculate every 6 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

Scorecard3 real differences Ā· 3 level
EF versus Echo Calculate: the parameters behind the verdict, then further details
ParameterEFEcho Calculate
PriceFreeFree
Update frequencyEvery 48 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size22 MB26 MB
Age rating17+4+
DeveloperKeiji MatsuiGundogan Emre

In-app purchases

None

EF

No in-app purchases

1 purchases

Echo Calculate

One-time1
  • Echo Calculate Premium$3.99

Questions

Is EF free?
EF is free to download, with no in-app purchases.
Is Echo Calculate free?
Echo Calculate is free to download, with in-app purchases available.
Do EF or Echo Calculate have ads?
Neither EF nor Echo Calculate shows ads.
Which is updated more often, EF or Echo Calculate?
EF ships an update every 48 months, and Echo Calculate every 6 months. Most recently, EF was updated on October 1, 2026 and Echo Calculate on October 3, 2026.

Other comparisons