For security

A gate that works at 2am, on one hand

Guards change shift, and some are more comfortable with a keypad than a keyboard. The screens they use are the simplest in the system, and work on the phone in their pocket.

A uniformed guard at a society's boom barrier, checking a visitor in on a tablet

Expected visitors: A code or a name. Check in, and the resident is told.
Walk-ins: Ask the flat from the gate, and wait for the answer on screen rather than on the phone.
Vehicles: Plate in, plate out, with resident vehicles known and visitor parking counted.
Gate passes: Nothing of value leaves without an approval the office gave in advance.
Parcels: Logged at the desk, and the resident told it is waiting.
Daily help and staff: Entry codes, attendance, and who is inside right now.
Patrol rounds: Scan the QR at each checkpoint; misses show up on the console.
SOS: One button. It escalates at two, five and ten minutes until somebody responds.

The desk still decides

The software does not replace the guard's judgement. It removes the paperwork around it, and leaves a record the office can read the next morning.

No register to write up by torchlight
No ringing a flat that does not answer
No argument about who let a van in
No lost note about a parcel
No guessing which car belongs where
No round that cannot be proved

Bring your society onto its own address

One request, one review, and the society is yours to set up.