It reminds me a little of https://www.beeper.com/. It allows you to read iMessages on Android and other platforms. To make this work, they will ship you some old iPhone to act as a server "bridge": https://twitter.com/ericmigi/status/1351934418961661959

If it works, it works. But it also speaks volumes about Apple's disregard/inexperience with exposing their stuff via the web - https://www.icloud.com/ being the prime example: half the stuff the phone apps can do are not available (cannot create a reminder with a due date...) and the things that are there are slow and buggy.