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Universal Chat App

Universal Chat App

Warning

Over a year old. May be outdated

A universal chat is one chat service that basically every internet user is on, like a social network or email that everyone already has. Everyone can talk to everyone without juggling separate platforms or apps.

Asia

Asia has several universal chats, one per region.

  1. WeChat (China). Made by Tencent, and it's a whole social ecosystem more than a messaging app. As of September 2021 it was the most popular app in China, with over a billion active users. It does text, voice, and video calls, a news feed (like Facebook's), mini-programs (small apps that run inside WeChat), and WeChat Pay for payments.
  2. KakaoTalk (Korea). Made by , a free messenger with free texts and calls. It's the dominant messaging app in Korea, and almost every smartphone user in the country has it. On top of chat and calls it does payments (KakaoPay), a news feed, music streaming, and even taxi hailing.
  3. Line (Japan). Made by Naver, the Korean search portal, and widely used in Japan, Taiwan, and Thailand. Besides messaging and free calls it has a timeline for photos, statuses, and comments, plus Line Pay, Line Music, Line Taxi, and a bunch of games.

Europe

The EU is a bit messier. Most people use WhatsApp.

  1. WhatsApp. Owned by Facebook. A free messaging app for and other smartphones that sends messages and calls over the internet, so you don't pay per message or call.
  2. Facebook Messenger. Also Facebook's. Text, voice calls, and video calls with people on Facebook.
  3. Viber. Owned by Rakuten, a Japanese company. Free messages and calls, with a secure connection, good call quality, and texts, photos, and videos.

U.S.

The Americas have no universal chat app. Younger people use iMessage, older people use WhatsApp, and a lot of the time everyone just texts.

  1. iMessage. Built into Apple devices (iPhone, iPad, Mac). It handles texts, photos, videos, and more, but only between Apple devices, which hurts when the other person is on an Android phone or a Windows PC.

Protocol Propositions

For direct messages,

  • . Used by , which wants to build a Matrix bridge for every social network.
  • MLS. Backed by Google and IETF.
  • RCS. Backed by Google and Samsung.

More on the social network side,

  • AT protocol. Jack Dorsey first proposed it at Twitter, and after the Musk takeover he founded Bluesky, which now maintains it.
  • ActivityPub protocol. Backed by Threads (Service) and Mastodon.

Connections: Super App

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