The issue with Titanium is the direct manipulation of view objects via the proxies. Much of what makes React Native special is that everything -- from the orig

The issue with Titanium is the direct manipulation of view objects via the proxies. Much of what makes React Native special is that everything -- from the original React API all the way to the latest and greatest bridge stuff -- has been designed with the assumption that the bridge (DOM) is the bottleneck so everything is batchable and async. The API that Titanium gives you is much more traditional OOP which means that developers can easily create applications that chatter over the bridge.