Still there's a few dedicated apps to specific body compression and non-fatal pressing (well.. to various degrees...)

One the paw and steps side:
6FtUnder
HeartNSole
And the very unfortunately named "StepSister,"

Butt folks have
BoxerRing
And ofc ReservedSeating

& gymrats may like
PitStopApp

Moving the reserved marker is not allowed. #reserved #seating #reservedseats #manners #etiquette #reservedseating