Sort of surprising that the app is cloud based rather than Bluetooth. You would expect a Bluetooth lock to keep working even if the cloud infrastructure was offline. And if the locks are only wifi, doesn’t that mean they would go through batteries like crazy? How long can a battery powered smart lock stay online?

They’re Bluetooth based and worked offline, but like so many “cloud” products, the app required an account which it seems to use to provision the key material for Bluetooth. I’m assuming they’re shutting down the account servers - so depending on how long the app goes between logins (or if the key material expires or not), it may be possible to extend their use.

This would be a fun reverse engineering project, probably!

And lose the ability to data mine and show you ads while you try to get into your own home, fat chance…