Begs the question why is the playstore even listing this app?
The app has legitimate business purposes, it is just used by scammers as well. It supposedly will give you warnings about the incoming calls from india (where the vast majority of these originate) and the scammers will often ask you to connect to them.
More info can be learned by searching youtube for ‘kitboga’ or ‘jim browning’ or ‘music is a rainbow’ or ‘pierogi scammer payback’ or ‘julia scam bbb’ or other scam baiters. There are also scam baiting robots as you will find with a search for ‘lenny scammer.’