Brosix Instant Messenger is a popular cross-platform messaging tool. Essential app for work and leisure! Main features:

• chat via text chat
• upload photos and other images
• off-line messages
• ability to make calls to contacts in the phone
• the ability to transmit its geographic coordinates to any user
• save chat history
• and more...

Brosix works on operating systems: iPhone, Windows, Mac and Linux with a wide range of functions. The program is similar to Skype, Yahoo, Messenger, ICQ, AIM.