Official Quickblox iOS SDK by Quickblox. It provides a link to download the SDK, code samples, and references to add the SDK to XCode and connect to the cloud. To have an idea of the integration possibilities, visual examples present how to create a simple WebRTC, a chat, a localization feature, and a content storage.
Messaging just got a lot more interesting to look at. Words say a lot, but a picture is worth a thousand of them; imagine the levels of communication that could be achieved using both. Doodle Republic is a messaging platform that provides the tools to create messages that include words and images. Basically, people chat by creating their own art and sending it to friends as a Chatoon. The Doodle Republic Chatoon API makes this functionality available to developers who may want to include it in other applications.
Relational databases have been around for multiple decades, and there’s a lot of logic tied up in stored procedures that most organizations would rather not have to throw away or rewrite in some other form somewhere else.