Let's start with Yale's line of touchpad smart locks. Each one will let you assign different codes to different users, then track who's coming and going in a companion app. The newest generation goes all-in on those touchpad smarts, eliminating the keyway altogether.
August now offers a kit that works with mortise locks. They're more common in commercial settings and apartment complexes, so for now, it's available only for locksmiths, building owners and commercial dealers.