Feedbackify - Feedbackify offers website feedback solutions that enable companies to engage with their customers.
Seald - Keep your conversations secure, everywhere.
tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page
Xifrem Chat - Client-side encrypted chat with asymmetric encryption
Userlike - Userlike is free live chat software for website and mobile support.
Brie.fi/ng - Start secure group video chat