The Stor-E Tree app is free to use but you need to register to use it. You need a valid email address for this. Select the Register Button and fill in the required fields.
Enter your name
Your email address
A password (two times)
You will get an automatic email to verify your email address. Open this email and follow the instructions.
This should take no more than a minute. Once you have successfully registered, you can log in to use the Stor-E Tree app.
Log in with your email address and your password. You will stay logged in until you log out again (on the My Account page).