While I am not interested for the same reasons many others have stated here, I would like to point out that their privacy policy is exemplary:

> Helium does not make any network requests, including to the Services, unless such requests are the result of user actions (for example, visiting a website or installing an extension) or are part of features that the user has explicitly enabled or configured during setup. If Helium is making any network requests without your consent, please file a bug report.

Gold standard.