Press the Home button on your Roku remote
Highlight the app you want to remove
Press the Star button on your remote
Select Remove channel
Confirm by selecting Remove
If the app is not on the Home screen, go to Settings
Select Home screen
Select TV inputs or Channel list if needed
Remove the app from there if available
If using the Roku mobile app, open the app
Go to Devices and select your Roku
Find the channel or app and remove it if supported
Restart your Roku if the app still appears
Sign in to your Roku account online
Go to Manage account
Select My channels
Remove the channel from your account if needed