Comparison

Impella App vs EchoRef

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

Head to head
About

Impella App

This app offers healthcare professionals immediate access to essential resources for Impella heart pump procedures. It provides step-by-step videos, calculators, and instructions for use, ensuring critical information is available at the point of care, even offline.

Highlights
  • Step-by-step setup and insertion videos
  • Personalized experience by role
  • Procedure calculators (heparin rate, CPO, PAPi, AKI)
  • Interactive patient selection checklist
  • Impella instructions for use (IFUs)
  • 24/7 Clinical Support Center access
Read full description

The Impella® App provides key resources health care professionals can access pre- and post-procedure at the point of care from the cath lab, ICU, OR or while in transport to improve patient outcomes. When patient care is critical, minutes matter. Offline content mode ensures cardiologists, surgeons, nurses, advanced practice providers and medical technicians always have access to the videos, content and algorithms they need. This app provides: - Step-by-step videos on the setup and insertion of Impella heart pumps - Personalized experience based on role and specialty - Calculators such as heparin rate, CPO, PAPi and AKI - Interactive Protected PCI patient selection checklist - Impella instructions for use (IFUs) - Click-to-call access to Abiomed’s 24/7 Clinical Support Center

About

EchoRef

This educational reference app provides comprehensive information on point-of-care ultrasound (POCUS), echocardiography, and cardiac measurements. It includes lessons on interventional procedures and hemodynamic calculations for medical professionals.

Highlights
  • Point-of-care ultrasound (POCUS)
  • Transthoracic echocardiography (TTE)
  • Transesophageal echocardiography (TEE)
  • Cardiac dimensions and valve measurements
  • Hemodynamic and ultrasound calculations
  • Interventional procedure lessons
Features
Read full description

Echocardiography and point-of-care ultrasound organized for the bedside. EchoRef is a comprehensive echocardiography and ultrasound reference for physicians, nurses, advanced practice clinicians, sonographers, medical students, and other healthcare learners. Review TEE, TTE, and POCUS videos, check cardiac measurements and diagnostic criteria, evaluate native and prosthetic valves, and perform commonly used ultrasound and hemodynamic calculations, all in one focused reference. FEATURES • Educational video library covering 2D and 3D TEE, interventional echocardiography, mechanical circulatory support, and clinical cases • POCUS instruction for cardiac, lung, abdominal, vascular, and peripheral nerve block examinations • Cardiac anatomy measurements and reference values for chamber size, ventricular function, diastology, and vascular structures • Native valve assessment for aortic, mitral, tricuspid, and pulmonic stenosis and regurgitation • Prosthetic valve reference for surgical valves, TAVR, and prosthesis evaluation • Ultrasound and hemodynamic calculators for valve area, cardiac output, ventricular function, filling pressures, vascular resistance, shunts, fluid responsiveness, and more • Cardiac equations, hemodynamic reference values, and ultrasound physics • Clinical protocols, focused examination guidance, findings atlas, and reporting documentation • Acquisition guidance, measurement tips, common pitfalls, and related clinical content • Global search, favorites, related links, and personal notes EchoRef connects ultrasound physics, image acquisition, echocardiographic interpretation, and bedside decision-making. Whether you are learning standard views, reviewing an unfamiliar finding, evaluating valve disease, or checking a calculation, the app makes relevant information easy to find. Created by Rishi Kumar, MD, FACC (“RK.MD”), an academic adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist committed to free, open-access medical education. Learn more at https://rk.md EchoRef is intended for educational and informational purposes only. It does not provide medical advice and is not a substitute for professional judgment, diagnosis, or treatment. Clinical findings and calculations must be independently verified and interpreted in the context of the individual patient. Seek guidance from a qualified healthcare professional regarding any medical condition. Do not disregard or delay professional medical advice because of information provided by this app.

Screenshots

Impella App4 screens
EchoRef4 screens

Verdict

The call

The clearest difference is review sentiment: EchoRef at 100% against Impella App's 33%. EchoRef also leads on rating (4.9 vs 3.8) and ratings volume (1.4K vs 11). Impella App's advantage is iOS requirement (15.1 vs 26.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

EchoRef holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 33% of Impella App's written reviews are positive against 100% of EchoRef's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Impella App versus EchoRef: the parameters behind the verdict, then further details
ParameterImpella AppEchoRef
PriceFreeFree
Rating3.8 (11 ratings)4.9 (1.4K ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings111.4K — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size29 MB104 MB
Age rating17+17+
DeveloperAbiomed, Inc.Rishi Kumar

Customer experience

Impella App

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

EchoRef

All ratings1,387 ratings
Positive97.2%
Neutral1.4%
Negative1.4%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Impella App

No in-app purchases

None

EchoRef

No in-app purchases

Questions

Is Impella App free?
Impella App is free to download, with no in-app purchases.
Is EchoRef free?
EchoRef is free to download, with no in-app purchases.
Which has better reviews, Impella App or EchoRef?
EchoRef is rated higher. Impella App averages 3.8 out of 5 from 11 ratings, while EchoRef averages 4.9 from 1.4K ratings.
Do Impella App or EchoRef have ads?
Neither Impella App nor EchoRef shows ads.
Which is updated more often, Impella App or EchoRef?
Impella App ships an update every 2 months, and EchoRef every 2 months. Most recently, Impella App was updated on November 1, 2026 and EchoRef on November 2, 2026.

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