Table of Contents

Messaging apps

Serious Recommendations

Mandatory Apps

4)
Just because it's the best doesn't mean you should use it.
5)
Server can read all messages unless you use 'secret chats', which have not been broken, but are a custom type of encryption many people have expressed skepticism over.
6)
Signal and WhatsApp use the Signal protocol, aka the Axolotl Ratchet, which is the most advanced encryption scheme that exists for messaging.
7)
They added a workaround that allows you to use a display name, but this doesn't actually let you create an account without a real phone number, so it's still annoying.
8)
You would actually expect this type of behavior from WeChat or QQ, but surprisingly, neither of those services will ban you for jokingly saying “im 12”.
9)
Functionally it's E2EE but the backup mechanisms are not well-documented or known secure.
10)
Line Yahoo! Japan Corporation aka A Holdings? Formerly Z Holdings? Naver? SoftBank?
11)
If disabled, your contacts are leaking your chats to the server.