TIL that it is convention in the English language to place the euro sign in front of the amount and not after it, like in most other European languages.
Yeah, I'm British and I'll concede that how we write it doesn't make sense. I do intend to localise it/add options in the future.
NumPad currently accepts numbers in the "9,999.9" format, which is the default in the anglosphere, but "9.999,9" is common elsewhere. So that's another thing I'd like to address in the future.
Slovenian here, we put it after. It makes more sense, at least to me, since you do say that apple costs five euros, where as the other way around: That apple costs euro five. Which would here mean that it costs 1.05€ and not 5€.