Someone :suckless:, it's paid, it's even less secure than plaintext HTTP, it's very limited in its features, and to top it off, your identity aka phone number doesn't belong to you, it belongs to your carrier and is tied to a particular country. Also I don't really remember when I chatted over SMS with a real person. It's still widely popular for all kinds of notifications and 2fa codes though.
Gregory's Server
Someone :suckless:, it's paid, it's even less secure than plaintext HTTP, it's very limited in its features, and to top it off, your identity aka phone number doesn't belong to you, it belongs to your carrier and is tied to a particular country. Also I don't really remember when I chatted over SMS with a real person. It's still widely popular for all kinds of notifications and 2fa codes though.