EP Calipers

EP Calipers

Electronic calipers

6 ratings
7 reviews
$1.99

Details

  • Released
  • Updated
  • April 23, 2015
  • October 4, 2025
EP Calipers screenshot #1 for iPhone
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EP Calipers screenshot #8 for iPhone
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About

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.

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
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What's New in EP Calipers

3.10.0

October 4, 2025

Support Liquid Glass

User reviews

Rip off

Impossible to use this app, not user-friendly at all, possible to erase the lines, this app should be taken off the Apple Store, unable to get a refund, apparently this app does not issue refunds, I tried

Response from developer

I'm sorry that the app was not easy to use. Just FYI, you double tap a caliper to delete it. This is mentioned in the onboarding screen and in the Help section, but I do agree the delete action could be more "discoverable." I will work on revising the tool tips and will add the delete action to the long press menu. Unfortunately Apple handles refunds and I don't have control over that.

Great new version

Reliable and convenient. Many residents don't carry calipers anymore and this helps me make teaching points wherever I go

Полезное приложение

Для тех кто хочет расшифровать экг, отлично подойдёт. По сути это кардиологическая линейка, только по фото. Спасибо разработчикам

Response from developer

Thank you!

Superb ... and surprisingly versatile

[Updated for v3.5, Sep-2020]
The new ‘maintain position’ feature greatly improves usability.
... Many thanks for incorporating this.
.
.

[Updated Review]
... It just got even better !!
Thanks for a very useful update
... I expect to be using this a lot.
.
.
[Original Review]
At first; this appears to be a rather specialist 'niche' App, but I am also finding it very useful for measurement of images other than ECG traces.

Excellent work ... Thank You !!
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Response from developer

Thank you.

Disappointed

Even if we load the new image lines from previous image remains.

Clear button doesn’t work at all

Not able to measure from previous interval. Always two lines come for a interval.not able to caliberate sequentially

Response from developer

Thanks for you comments. Responses: 1- The lines go from screen edge to screen edge to make it easier to manipulate the calipers on a small screen. Also this is the behavior of electronic calipers in EP recording systems. If you wish to email me with more details about what you have in mind that would be great. 2- That's a great idea, but not too easy to implement. I will give it some thought. 3- Thanks!

Developer apps

FAQ

What is EP Calipers used for?

EP Calipers is used to measure intervals and angles on electrocardiogram (ECG) images. It helps medical professionals accurately analyze ECGs from photos or PDFs for calculations like heart rate and QT intervals.

What devices does EP Calipers support?

EP Calipers is available for iPhone, iPad, and iPod devices.

How accurate are the measurements in EP Calipers?

The app is designed to provide accurate ECG measurements, overcoming the difficulties and inaccuracies of using mechanical calipers on digital images.

Can EP Calipers analyze PDF files?

Yes, EP Calipers can analyze PDF files, including ECGs generated by devices like the AliveCor Kardia™.

What specific measurements can EP Calipers perform?

EP Calipers can determine mean heart rate, corrected QT interval, and angles such as the beta angle in Brugada syndrome.

What is the age rating for EP Calipers?

EP Calipers has an age rating of 12+.

How often is EP Calipers updated?

The latest version is 3.10.0, and the app was last updated on October 4, 2025, indicating regular updates.

What is the price of EP Calipers?

EP Calipers is a paid application, costing $1.99.