You can't use the app without first making an account-- but you can't make an account within the app, and there are no instructions telling you how to do so. Poor UI, immediately uninstalled.
Update The update removed some functionality, the text of the questions is quite small, the new ui is not as well laid out as the previous ui
??? log in ??? what's about the logging in stuff? because there is no option to create an account in the first place!
Updated session creation screen
Updated zoom and pan gestures
Minor bug fixes