in the site you will find more details about this app .
it is free now you can sign without any charge.
this is phase 1 and entering phase 2.
the only way to sign is by invitation.
and everyone can invite 5 people only.
check the video in the website http://www.startmyripple.com/signup/index and if you want to join send me an email
and i will send invitation .
[email protected]