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 f

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!