For those who may be interested: Primephonic does NOT work. It is actually possible to get it installed (with the usual trick) and to get it started. But no way to go past the login screen. When trying "Login with Google" it doesn't succeed because of the system not supporting the Oauth2 login. Can't say I wasn't expecting this. If the Primephonic account was created in conjunction with a Google account (I did it on my S10+), it's not possible to access using the same credentials into a generic Primephonic account, you have to request them to reset your account and create a new, generic one. IDAGIO solved this better, as you get a generic account irrespective of the way you create it. But they were blazing fast into reacting at my inquiry. Unfortunately, login with an user name and a password in the Primephonic app installed in an SP1000 still results in an error page (unknown URL scheme). I had high hopes about getting it to work, even if in an unofficial way, but at the moment this just doesn't seem possible. Hoping A&K can add support for it soon.