There are no shortage of messaging applications on Android and Wire is one that advertises itself as a secure platform. However, security researchers feel the way Wire handles the contact data in plain text isn't very secure at all.
Wire is a messaging application that is trying to compete with the likes of Signal, WhatsApp and others. The company seems to be focused on security because they recently hired a company to do a security review and the results showed the application was very secure.
Wire has open-sourced their secure messaging app. Wire offers encrypted text, voice, and video conversations. The company invites people to build communication apps using Wire's framework and they will continue to improve the security and features of the app.