Same reason PS messenger can block third party clients. Is it ethical? Not in my opinion. Facetime and iMessage were introduced under the guise of becoming ope

Same reason PS messenger can block third party clients. Is it ethical? Not in my opinion. Facetime and iMessage were introduced under the guise of becoming open at some point, however that was because they lost a patent lawsuit iirc[0] it's worth focusing on the differences between iMessage and Internet Explorer (which was the last monopoly battle that anyone cares about). The truth of it is: across Apple devices, while iMessage is installed, the alternative message systems are just too successful to argue. The overwhelming majority are using facebook messenger or whatsapp anyway. So there's no evidence that Apple is curbing another industry. Apple is also not in a monopolistic position except on their own hardware, which is true for everyone (including Blackberry with their messenger). [0]: https://www.bbc.com/news/technology-20236114 https://www.bbc.com/news/technology-20236114