Go to Settings > Security and toggle on Unknown Sources . This permits the installation of applications outside the Google Play Store.
Go to Settings > Apps > Default Apps > Home App and select Nova Launcher. nova launcher prime apk android 601 better
If you want to breathe new life into an Android 6.0.1 device, is not just an alternative; it is an improvement. It brings modern UI elements, improves speed, and provides superior customization, making your trusty older phone feel faster and more efficient. If you'd like, I can: Go to Settings > Security and toggle on Unknown Sources
: Bundle similar apps together directly within the app drawer. is not just an alternative
What of device are you using Android 6.0.1 on? Share public link