# EP Calipers — user reviews

> 7 indexed App Store user reviews of EP Calipers by EP Studios, rated 2.30/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/ep-calipers/id982313078/reviews
- App overview in markdown: https://appshunter.io/ios/app/ep-calipers/id982313078.md
- Rating breakdown: 5★ 2 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 4

## Most critical reviews (7 lowest-rated)

### 1/5 — Rip off

*2025-04-28*

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

**Developer response:** 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.

### 1/5 — Disappointed

*2020-01-23*

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

**Developer response:** 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!

### 1/5 — Stick with your pocket calipers

*2018-12-12*

Poor design. Not intuitive. Instructions cumbersome. Stick to the calipers.

**Developer response:** The user interface and help system have been completely revamped in the latest version of the app.  If you are willing to try it again, I would be interested in your feedback.

### 4/5 — A great app but!

*2019-12-13*

I love this app. It has made my life much simpler but I would suggest a couple of additions:
Ability to divide a particular calliper in two without manually dragging it.
Ability to write on the ECG lets say with an Apple Pencil.
Ability to put different markers on the ECG other than the callipers.

### 5/5 — Great new version

*2022-08-20*

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

### 5/5 — Полезное приложение

*2022-03-29*

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

**Developer response:** Thank you!

### 5/5 — Superb ... and surprisingly versatile

*2020-09-28*

[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 !!

**Developer response:** Thank you.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*