Android App Rating: 2.8 (1031) Cost:
Yammer for Android lets you easily access your company’s social network from your Android device.
Android App Rating: 4.14 (1267) Cost:
GO Chat plug-in for GO SMS, support free text between GO Chat usersGO Chat is a GO SMS plug-in that supports instance chat(free messages) between GO Chat users, it can auto-detect GO Chat users in your contacts list, and SMS and Instant messages can be switched seamlessly.
Android App Rating: 2.9 (2143) Cost:
31SMS Messenger – Free Texting to ANY Phone Around the World
31SMS messenger is an Android to ANY cell phone messenger
1)Free texting* Bulk SMS
2)Texts can be sent to any make or model of cell phone
3)Messages can include text, pictures, audio, video, map, contacts, and more.