Hello, I have the same issue as Alek and Robert.
Samsung S7 (Android).

Shazam doesn't work when screen is locked.
Google map navigation does not work when screen is locked.

On the bright side, fart generator works when screen is locked, so all is not lost :)

A screen unlock action would be great. I'm sure it is NOT included for security reasons.

A pity, though.

Cheers,

Ian