Do I go to box office or entrance gate with a phone app ticket?

Any entrance gate

Entrance gate

The gate.

You can go to the gate with your phone app ticket, they will scan it there

Just like the other local guide said you would just head to the gate and they will use their scanners to scan the barcode on your phone

Entrance gate will scan the tickets

Entrance gate, they will scan your phone and give you a paper ticket.