The Sinch SDK for Android lets developers add voice calling and instant messaging capabilities to their iOS based mobile apps. The SDK handles signaling and audio management. In addition it offers support for:
App to app calling
App to phone calling
Instant messaging to single and multiple recipient
SlickText, a leading text messaging marketing company, has announced that the company plans on releasing an API which will make it possible for developers to integrate the SlickText platform into their applications. The number of Messaging APIs has been growing steadily and at the time of this writing, there are 261 Messaging APIs in the ProgrammableWeb Directory.