If you love Storii so much you want to purchase it for someone else, you can set this up from inside your Storii account.
Log in using the Storii Family App or online at family.storii.com
On the Home screen, you will see Connections on the left-hand side
Find the + Add button and click on it
Select Create a paid account from the menu that appears
On the next screen, you will be prompted to enter details for this new account
Once you've done this, you will be able to see and manage your accounts and billing information by clicking the arrow next to your profile picture and clicking on Settings and then Billing
