Hello,
On my iphone my coursers are showed in google earth while I will show it in openstreetmap.
How can I change the map in my google connect app (on IOS)?
You can't.
But I can see it on my iPad in openstreetmap instead of google earth.
I would expect the same on my iPhone
There are lots of things you can't do in the app that you can do in the web version. I almost only use the web since it is so much more powerful and got many more functions.