Don't recommend Telegram

[jomo]

• Telegram doesn't use end-to-end encryption, unless you manually start a "secret chat"
• Encryption doesn't work with multiple devices
• Encryption doesn't work with group chats
• Encryption has been criticized by security experts for having serious flaws
• Telegram isn't open sourcing their server code
• Telegram's Android app is no longer open source
• Telegram is run by the inventor of vk (the Russian equivalent of Facebook)
• …