In previous versions the ability to get license information and about (credits, website, etc) was available in the settings. I can no longer find them. Am I missing something or has this been removed? It would helpful to have an indication of when the license expires.
In the main menu click BetterTouchTool => About
The menu doesn't always show/display. I needed to log out and then log back in to the get it to show. In the first two screen shots you'll see BTT is active but not showing in the menu. The third screen shot it works as you described.
Not sure if it is an OS or BTT issue.
Which macOS version are you currently running?
10.14.6
It has shown more reliably since logging in/out, so I am hoping it was an anomaly.