Telegram
Free
Telegram is a free cloud-based instant messaging platform.
Signal
Open Source
Signal is the most scalable encryption tool.
Threema
Commercial
Threema is an encrypted instant messaging application for iOS, Android and Windows Phone.
Zulip
Open Source
Zulip is a chat and collaborative software.
Dasher Messenger
Free
Dasher Messenger provids a way to message friends.
WhatsApp Messenger
Free
WhatsApp Messenger is an instant messaging platform owned by Facebook.
ChatSecure
Open Source
ChatSecure is a messaging application for iOS which allows OTR and OMEMO encryption for the XMPP protocol.
Snapchat
Free Personal
Snapchat is an image messaging and multimedia mobile application.
Wickr
Free
Wickr is an instant messenger application.
Compare Sicher with alternatives
Compare WhatsApp Messenger and Sicher and decide which is most suitable for you.
Compare Dasher Messenger and Sicher and decide which is most suitable for you.