What are some alternatives?
When comparing iKnode and Appcelerator Titanium, you can also consider the following products
Backendless - Backendless is a mobile Backend as a Service (mBaaS) platform.
convertigo - Convertigo offers mobile backend as a service for creating and deploying business mobile applications.
Parse (Updated) - Parse with five new products, live from F8
React Native - A framework for building native apps with React