FLEX vs URX: What are the differences?
FLEX: In-app debugging tool for iOS, inspect and modify views in the hierarchy. FLEX (Flipboard Explorer) is a set of in-app debugging and exploration tools for iOS development. When presented, FLEX shows a toolbar that lives in a window above your application. From this toolbar, you can view and modify nearly every piece of state in your running application; URX: Find and link users directly to relevant content inside other apps to create a seamless experience across multiple apps. URX makes it easy to link into apps. Our API uses information such as keywords, location and time, and returns deep links into relevant apps. Quickly integrate URX AppViews or create a completely native experience with our SDKs.
FLEX can be classified as a tool in the "Mobile Runtime Inspector" category, while URX is grouped under "Deep Linking as a Service".
FLEX is an open source tool with 10.5K GitHub stars and 1.2K GitHub forks. Here's a link to FLEX's open source repository on GitHub.