Suggestion for Android version
Hi, It would be great if in a future version of the android app you could include the "Tips and Notes" page that appears at the start of each lesson. I don't get to use Duolingo on a desktop very often so having this on the phone app would be very handy.
(I'm not sure if this is already on the iPhone version)
No it is not on the iPhone version nor any mobile app AFAIK.
You could always open your browser on the relevant Duolingo page and switch between the app and your browser when you want to check something.