Apps to Secure Chat

BlackBerry Messenger (BBM) was a pioneering instant messaging and videotelephony application, originally exclusive to BlackBerry devices, which expanded to support iOS, Android, and Windows Mobile. It facilitated secure text messaging, voice calls, and video calls.

Wire is a secure, cross-platform messaging and collaboration client offering end-to-end encryption by default for all communication types including messaging, voice and video calls, and file sharing across desktop and mobile devices.