You're free to use the app normally, writing new notes and editing existing notes. (howtogeek.com)
The design is different to existing Note phones, due to there being no hardware Home button on the front panel. (digitaltrends.com)
Lending Club does not have a brokerage license so they use Folio Investing (also referred to as FolioFN or simply, Folio) to allow trading of existing notes. (blog.lendingrobot.com)