On Kali BetterCap UI is installed by default and can be launched directly. For other systems it has to be manually installed using the “ui” module
Default Credentials
Username : user
Password : pass
UI Interface
Event : Shows Events that occurred
LAN : View the devices that are connected on the Network
Right Click on IP Address → Use ARP Spoof
Caplets : View all the inbuild Caplet modules
Advanced : Other modules preset in BetterCap