Philippines chat apps
Facebook has this option, too, but it’s not emphasized in its design.
One of my cousins in the Philippines, Mark Tan, uses Viber for group chats with his friends and for amateur sports teams he’s part of.
With Chinese friends and my parents, I use We Chat.
With relatives in the Philippines, I mostly use Facebook, and sometimes Viber.
We formed We Chat groups and traded stickers and GIFs.
And my parents started using it more as well, to keep in touch with Chinese friends.