Choose a session or create one with +.
Use the same signed-in email as the desktop app. Vocabulary changes sync in small batches; your existing full word library is not uploaded.
Your learning and native languages can be changed here at any time.
Select your native language and the language you are learning. You can change these later from Languages in the top menu.
Browse the library, your saved sessions, and installed stories. Nothing changes until you choose Use selected set.