INFORMATION SECURITY PORTAL
SOFTWARE/TOOLS - MOBILE MESSAGING APPS
Below are links to various Mobile Apps for messaging. Focus on the Mobile Apps has been privacy and security, e.g. use of encryption to ensure private conversations.
The Mobile Apps are ranked according to how secure they are, ie Signal is the most secure app. The ranking is based on mine and others in the security area's experience.
The Apps have been tested but you have to make your own decision before you use them (use them at your own discreation).