Cubie Messenger is described as 'free messaging app that lets you happily draw something funny while you’re chatting. You can also share video, photos and voice messages' and is an app in the Social & Communications category. There are more than 50 alternatives to Cubie Messenger for a variety of platforms, including iPhone, Android, Windows, Mac and iPad. The best alternative is Telegram, which is free. Other great apps like Cubie Messenger are Signal (Free, Open Source), Skype (Freemium), Wire (Free Personal, Open Source) and WhatsApp (Free).
Talkatone gives you free calls, text messages, real-time location sharing and picture sharing to Facebook and Google friends, or any phone number in US. Talkatone can replace your native phone to call and text for free without using cell minutes.
GyachE Improved (GyachI) is a fork from Gyach Enhanced Yahoo! client for Linux operating systems. This Yahoo! client supports almost all of the features you would expect to find on the official Windows Yahoo!
XendApp provides a messaging gateway for reaching public or internal users through applications for a variety of devices. Messages can be sent directly from http://xendapp.com web site or through any of the existing web services that the web site have.
Cnectd is a mobile messaging and social networking application for smart phones. Cnectd lets you chat across iPhone, BlackBerry, Android and Symbian devices. In addition Cnectd allows you to find new friends in your area, share media with your contacts and more.
OctroTalk is an Jabber/Gtalk client with support for GTalk (GMail) audio and Video calls. OctroTalk also supports SIP calling (through a provider of your choice). Features: 1 ) Connect securely to GTalk/Jabber 2) P2P Audio/Video Calling