In the computer settings of the iOS app, you can make both the white and black pieces human controlled. There is a switch to prevent board flipping.
OTB on iPad?

Thanks, but I'm really interested in how to make both sides oriented to a player on either side, if that makes sense. (Not all facing a single viewer holding the iPad). More like real OTB configuration.

Www.masterpiecechess.com
You can setup these pieces on your iPad and play a match by moving real pieces!
Is there a setting or app that will allow 2 players to face each other OTiP (over the iPad?!) over a tablet without needing to rotate the board every turn?