UK based developer, Mediaforce Limited today announces HeyApp Messenger 1.4, an important update to their innovative messaging app for iOS, Android, and Amazon Fire devices. HeyApp Messenger allows anyone to send a friend a message, notifying them with an audible "Hey!" even if their device is locked. Users can chat, share images and video, send links, stickers and contact information to any user on any device. Version 1.4 brings username logins and faster chatting and live updates.