[TheDong]

> Every other major messaging app exposes something to developers

Not iMessage, which is the largest messaging app in the US. Uniquely, it doesn't even have an android app, so android users have to pay $800 to buy a single-use device with an effectively worthless OS bundled on it just to be able to join group chats.

iMessage doesn't even have good crypto, the default settings include unencrypted iCloud backups of your iMessage data lol.

I'll take Signal, which works on my desktop linux machine and android phone, over iMessage any day of the week, but the US as a whole seems to have chosen differently

[romantomjak]

As far as I know, there isn’t an official API for cross-platform communication. However, the Messages framework allows developers to create sticker packs and interactive messages for iMessage. People in the group can interact with messages created by other apps, such as polls, location updates, and game integrations to name a few