Prompt user to study or go to settings

[zuevval]

VN said that again and again, she is faced with the following situation: a user starts exploring the app, enters Practice, tries it for a while without reading docs or opening other sections, and then concludes that there are only 4 letters in the app.

My idea is to produce a pop-up message or something like that if a user goes to practice and, for example, enters all letters two-three times without having learned a single letter in Theory.