GreaterThanZero is for those who have a desire to understand the performance of their investments and compare them to alternatives such as investing in index funds. This is particulary important if you do your own stock trading or pay an advisor to make decisions for you. In that case, you're already spending time or money on your investments. GreaterThanZero lets you see if a low-cost index fund would have been better or worse.
We have worked hard to design GreaterThanZero in such a way that all the help and documentation you need is at your fingertips on the pages of the app itself. There is no need to read any separate documentation. Just go to the sign-up page and take it from there. To see the embedded help and documentation on the app's pages, you may:
GreaterThanZero is not affiliated with Google. However, GreaterThanZero is hosted on the Google infrastructure (Google App Engine) and uses Google accounts for authentication. If you already have a Google account (for Gmail, Google+, Google Calendar, Google Drive, etc.), you may use it to log into GreaterThanZero. If not, you will be asked to create a Google account during sign-up.
The process of creating a Google account, if necessary, and logging in and out of GreaterThanZero is handled by Google. It is as secure as using Gmail, Google+, Google Calendar, or Google Drive. We cannot see or otherwise obtain your Google password.