In order for my students to learn Swedish easily, I would need a button where they can press and read a sentence (after they have listened to a sentence I say). After that, they need to be able to press a start button and listen to what they say themselves, so that they can compare their voice with mine.

It is very easy to make a button yourself, and it works well in the computer, but the button does not work in the app. Is there any way to solve this?

I don't want to use assignment for one sentence at a time. There will be too many assignments, and I don't want all students to send me all assignments one sentence at a time.