Please include a Tips and Notes section on mobile apps
Tips and Notes is by far the most underrated feature on Duolingo. The notes are of great quality and can be really important to help you learn grammar.
The Duolingo website is a goldmine for learning resources. Besides the actual lessons, there are the also the tips and forums. These are actually instrumental in helping us learn better. The apps, however, are lacking in any of these great features.
Please help the Duolingo team see this!