Hi, @Sue0319.
Greetings from the Roku Community!
Thanks for reaching out here and we'd be happy to help you access the Spotify app on your Roku device.
If you open the Spotify app on your Roku, it will prompt you to Log in or Sign up for free. If you already have an account, kindly select the log-in option.
After doing so, please select the option Log in with password. This will give you the option to enter your email or username and password.
Hope this helps!
Warm regards,
Carly
Carly Y.
Roku Community Moderator