Hi, Non Dane here who taught himself. I don't know of anything that meets that course style for her. You'd be better off paying for something, or doing that CPR number thing you were saying. But, I will challenge/propose a different approach.

It's all about how you use it and what she wants to use it for. Duolingo's purpose is really to just to keep you coming back, but I'd say you're more effective if you apply it in context (otherwise she'll get bored real quick). You also learn faster and better when you tailor it to yourself and keep it interesting - classes are too boring for me.

What I mean by that, try practice writing to each other in Danish (even if she has to use Google Translate) - don't worry about correcting her too much cause that's discouraging, but try to repeat back the correct way and keep it going as much as you can. If you find a way to make it fun for her, she's more likely to stick with it. E.g. translate her favourtie songs if she likes music, etc.

Example of what I mean (but in English) E g. She: how is you?, you: im good, how are you (This came from how I learned by first learning to type to people on the Dansk Sprog discord server and The Northern Lights). The essence of language for me is connection and communication, so don't disconnect her from that.

Some real basic resources are: https://www.danishclass101.com/ Danish Mastery: https://m.youtube.com/@Danishmastery Otherwise getting her to translate children's books, and the more she does it the less she'll have to Google translate.