When you join Flipdish you will receive an email with information about your new app and website and a link to the Flipdish portal. It will look like this.
When you click on Access Account you will be asked to create a password that you will then use to login to the portal in future. Your user name will be your email address.
If you ever want to login to the portal in future you can simply go to getflipdish.com and click on Dashboard.