# The Cardiac Calculator — user reviews

> 2 indexed App Store user reviews of The Cardiac Calculator by Cardiac Tech Ltd, rated 1.00/5 from 1 ratings.

- Source: https://appshunter.io/ios/app/the-cardiac-calculator/id6444764693/reviews
- App overview in markdown: https://appshunter.io/ios/app/the-cardiac-calculator/id6444764693.md
- Rating breakdown: 5★ 0 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 1

## Most critical reviews (2 lowest-rated)

### 1/5 — Still doesn’t work

*2026-02-25*

Update from previous review where I gave this a 1 star as I only got jumbled text when I opened it.  The developer asked me to give it another try.  I was on an iPhone 10 at that time.  On iPhone 17 still doesn’t work with overlapping text and a complete failure to do anything.  Sorry, still a 1 star

**Developer response:** My apologies for this - I have recently sent through some updates. Could you let me know if the app still not working on your phone? Could you also tell me which IPhone you are using and I will endeavour to get the app functional for your phone model. Thanks, Dan

### 1/5 — Horrible app

*2023-03-18*

It doesn’t work at all. The App looks like it isn’t finished building yet so when you open it the letters do not even appear properly in boxes. You type in ms and hit calculate to convert it to bpm and literally nothing happens. Waste of money!

**Developer response:** My apologies for this - I have recently sent through some updates. Is the app still not working on your phone? Could you also tell me which IPhone you are using and I will endeavour to get the app functional for your phone model. Thanks, Dan

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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 2026-08-27.*