If, after clicking the Allow button on the Dropbox or Evernote site, Clarify does not create the sharing account it may be because another application is listening on the same PORT on your computer (currently Clarify uses a port between 9990 and 9999).

We have had one report of Clarify not being able to finish creating an account if Extensis Portfolio is running. If you quit Extensis Portfolio you should be able to create the sharing account. After you have created the sharing account you can run Extensis Portfolio and Clarify together without any issues.