You don't want to show Blacklist app on your Launcher, you should hide it. Please follow below steps:
- Open Blacklist
- Click on 3-dot button, then "Settings"
- Click on "Security"
- Click on "Remove app's icon from Launcher". Click again to show it again.
To open hidden Blacklist, dial "5555". Please remember this number or you change it immediately or you can't open Blacklist again.