AccessGrid issues NFC access passes for Apple Wallet and Google Wallet. With Della OS, a resident's key is created from the lease and added to their phone's wallet from the Della Resident app, and it keeps working even when the app is closed.

Residents add their building key to Apple Wallet or Google Wallet from the Della Resident app.
Once the key is in the wallet, residents tap to open, even when the Della Resident app isn't running.
Della OS creates the pass at move-in and revokes it at move-out.
Della Resident app and Apple Wallet or Google Wallet for residents, and Della Connect for property staff
Wallet keys take fobs and key cards out of move-in and give residents the kind of access they already use for payments and travel.
Yes. Residents use the Della Resident app to add their key to Apple Wallet or Google Wallet. After that, the wallet credential works at the door even when the Della app is closed.
Della OS connects to Yardi, Entrata, RealPage, AppFolio and ResMan, so changes follow the lease in the system your team already uses.
Della OS connects property management systems, access control, smart locks, climate, Wi-Fi, cameras and more, so every building in a portfolio runs the same way, whatever hardware it already has.