The app has a very nice look and feel and is easy to use.
There is one major missing element. No auto-correct! This is 2023.
I was watching the news this morning and saw the city of LVIV getting bombed. A name written with letters that are also Roman numerals. For the heck of it I typed in the numerals. I got a “< Not a valid Roman numeral >”. Of course it is not valid - as is about 10% of what I type. But I have auto-correct and auto-suggest to help me out. If this is meant to be a teacher (and it is), then it would say, just as a human teacher would correct a quiz, “Did you mean 59 or 61?” LVIV could be incorrectly parsed into those two. (LV = 55 + IV = 4) = 59.
Or (L = 50 + VI = 6 + V = 5) = 61.
Not easy to do but not impossible and would make it a better learning tool.
My other issue is the ads of course. I go was writing and downloading software in the old freeware/shareware days. No ads. Sometimes a price or donation for the premium edition. Software like this I will happily pay a few bucks to not be hounded by google. I have many $1.99 - $4.99 apps.
All that said, it is a nice app - well done.
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