Every booking comes with a PIN or QR code that only works for the booked time. Key handovers are no longer needed.
The floodlights come on when a booking starts and go off when it ends, so no light burns for nothing.
A door, turnstile or gate becomes an access point that checks every code at once: valid, expired or denied.
Every entry is logged, so you can always trace who was at your facility and at what time.
Players get their access code in the app and with the booking confirmation, so they get in without staff.
Your on-site controller checks with spooorts if a booking is active and switches lights, lock and, if needed, heating.