What I am looking for is the ability to control an electronic lock with a Bluetooth smartphone (with functionality for 'keys' which I can grant people permanently or temporarily) which ideally integrates into Control4. Kwikset kevo, August, danalock, etc have their key functionality but only this danalock product can control an existing electronic lock and I don't think any of these products integrate with control4 anyway.
Are any of the alternatives you mention suitable for Bluetooth control of a lock like I am trying to achieve?
Another option I have found is an ECKey VP1 but that is a few hundred dollars for the Bluetooth reader, a couple of hundred for Houselogix's wiegand serial interface, a couple of hundred for Houselogix's access control database and an annual $40 fee for ECKey to manage keys. This all adds up to a lot more than a danalock if there was an appropriate way to integrate it with Control4.
Perhaps I am missing an obvious solution?
Thanks