Instant messaging comparison · テクニカル魔理沙

[Written in June 4, 2022 by Aoi Koizumi]

Tier 1

• Internet Relay Chat (IRC)
• Mumble
• Session Initiation Protocol (SIP)
• Extensible Messaging and Presence Protocol (XMPP)

Tier 2

• Jitsi Meet
• Matrix[1]

Tier 3

• Signal[2]
• Threema[3]
• Wire[2][4]

Tier 4

• Telegram[2][3]

Tier 5

• Discord
• Facebook Messenger
• Google Hangouts
• iMessage
• Kik Messenger
• LINE
• Snapchat
• Tencent QQ
• Viber
• WeChat
• WhatsApp

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Footnotes:

[1]

• [2] Requires phone number
• [3] Server is closed source
• [4] (Wire only) You can use e-mail instead of phone number

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