Add comma to the numeric keyboard
I mostly pay my bills with banking apps on my Jolla. In Finland we use a comma to seperate euros and cents (e.g. 3,20 €) and it's impossible to add a comma with the numeric keyboard straight to the amount field when making a new payment. My temporary fix for this is to open a new text message (or note), type the amount with the QWERTY keyboard, copy and paste it.
Note: Some countries use a period instead of a comma (e.g. $3.20).
Edit: Here's a screenshot of the numeric keyboard
Edit edit: The bank I use uses this keyboard for the "amount" field, ignore the phone number field.