Comparison

EP Calipers vs PrepMD OMNI Go

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

Head to head
About

EP Calipers

This medical app allows users to measure intervals and angles on electrocardiogram (ECG) images. It's designed for healthcare professionals to accurately analyze ECGs from photos or PDFs, aiding in calculations like heart rate and QT intervals.

Highlights
  • Measure ECG intervals
  • Measure ECG angles
  • Calculate mean heart rate
  • Determine corrected QT interval
  • Analyze ECG photos and PDFs
  • Supports Brugada syndrome beta angle measurement
Features
Currently charting
Read full description

EP Calipers provides electronic calipers to measure intervals on images of electrocardiograms (ECGs) or electrophysiologic recordings. Doctors, nurses and medical technicians photograph and send ECGs to each other via email and messaging using smart phones and tablets. It is difficult and inaccurate to make measurements on these images with mechanical calipers. EP Calipers can be used to make accurate ECG measurements and do calculations such as determining mean heart rate and corrected QT interval. Angles such as the beta angle in Brugada syndrome can be measured as well. Analyze ECG images you photograph or store on your device, as well as PDF files, such as ECGs generated by the AliveCor Kardia™ device.

About

PrepMD OMNI Go

Read full description

PrepMD Review gives cardiac electrophysiologists and physicians the freedom to securely review and sign reports of cardiac implantable electronic device (CIED) transmissions - right from their mobile device. Each report is expertly summarized by IBHRE-certified clinical specialists using PrepMD’s OMNI software platform. Whether you’re at the hospital, in clinic, or on the go, you can take action quickly by signing and exporting reports directly to your EHR or reassigning them to another provider. Key Features: • View detailed CIED transmission reports created by PrepMD’s clinical experts • Sign and send finalized reports to your EHR with a single tap • Reassign reports to a colleague for review and signature • HIPAA-compliant access to patient data, with military-grade security Trusted by leading cardiac clinics across the country, PrepMD Review helps your team deliver timely, high-quality patient care with greater efficiency.

Screenshots

EP Calipers4 screens
PrepMD OMNI Go4 screens

Verdict

The call

The clearest difference is price: PrepMD OMNI Go at Free against EP Calipers's $1.99. PrepMD OMNI Go also leads on iOS requirement (15.6 vs 17.6). EP Calipers's advantage is chart position (#64 vs unranked). 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

CostPrice · In-app purchases · Ads · Monetization

PrepMD OMNI Go is free to download; EP Calipers costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 8 level
EP Calipers versus PrepMD OMNI Go: the parameters behind the verdict, then further details
ParameterEP CalipersPrepMD OMNI Go
Price$1.99Free — better
Rating2.3 (6 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#64 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size14 MB29 MB
Age rating12+17+
DeveloperEP StudiosPrepMD

In-app purchases

None

EP Calipers

No in-app purchases

None

PrepMD OMNI Go

No in-app purchases

Questions

Is EP Calipers free?
EP Calipers costs $1.99, with no in-app purchases.
Is PrepMD OMNI Go free?
PrepMD OMNI Go is free to download, with no in-app purchases.
Do EP Calipers or PrepMD OMNI Go have ads?
Neither EP Calipers nor PrepMD OMNI Go shows ads.
Which is updated more often, EP Calipers or PrepMD OMNI Go?
EP Calipers ships an update every 3 months, and PrepMD OMNI Go every 3 months. Most recently, EP Calipers was updated on November 1, 2026 and PrepMD OMNI Go on October 30, 2026.

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