Under the SETTINGS --> "Support" tab you will find links where to get solutions to your questions or problems. Please see below the picture what different buttons do.
Need help? Click "contact support" to land in support page. There you can find solution to most of the questions.
Yousician forum: Go to the forum, meet other users and engage in discussions, find help and instrumental instructions.
App version: Displays current version of the app.
New features: Shows improvements released in the latest update.
Legal information: See licences here.