# Dozecal — user reviews

> 4 indexed App Store user reviews of Dozecal by Johan Kovacs, rated 4.00/5 from 4 ratings.

- Source: https://appshunter.io/ios/app/dozecal/id1521160089/reviews
- App overview in markdown: https://appshunter.io/ios/app/dozecal/id1521160089.md
- Rating breakdown: 5★ 3 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 1

## Most critical reviews (4 lowest-rated)

### 1/5 — Interesting

*2020-07-28*

Has novelty value!
I get the feeling this is a 'work in progress', so I look forward to seeing how it develops.

Unfortunately, although the display rotates it does not resize for landscape view, meaning part of the keypad is missing and the readout is not visible at all!

…Reverting to portrait mode:
Stack behaviour is a bit odd: results are not automatically put into the X register, thus requiring an extra tap on the 'Enter' key to get them there.

Also, the keys themselves do not always register a hit, so watching the readout becomes a priority — and it's easy to make irretrievable errors.

It seems its most practical purpose is as a base10 / base12 conversion tool. However, I do like the concept and it comes without adverts, for free. Highly commendable!

### 5/5 — Makes duodecimal Easy to understand

*2025-04-22, version 1.0.7*

I have been very interested in the base 12 system for a number of years now and I am very pleased there is a calculator app for it now. Very well thought out you can switch between the decimal and duodecimal modes.

### 5/5 — Really cool!!!!

*2023-03-26, version 1.0.3*

I’m learning dozenal at the moment and your calculator is pretty intuitive to understand, it’s neat learning RPN at the same time

### 5/5 — Another Excellent Improvement

*2023-01-31*

Great improvement in readability of fractional Dozenal numbers between 0 and 1!  Going immediately to scientific notation for numbers between 0 to 1 made them difficult to read.  This most recent update fixed that! 

Next suggestion:  Implement DSA font options for Dec and El (Pittman, Dwiggins, or both) in the display area?

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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 2026-06-04.*