I think you might want to consider an Apex. While the spark has some very specific usecases it is not the core focus of development at vivokey. I believe they will keep backwards compatibility with it but it won’t do much more than log you into a couple forums and serve as a backup for your Apexes.
The apex on the other hand is much more technologically advanced with the ability to run applets from a dedicated applet store. The applets include 2FA and other authentications and are much more future proof.
Unless something is in the works, but still apexes are so much better