FLEX vs Stetho: 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; Stetho: A new debugging platform for Android, built by Facebook. Stetho is a sophisticated debug bridge for Android applications. When enabled, developers have access to the Chrome Developer Tools feature natively part of the Chrome desktop browser. Developers can also choose to enable the optional dumpapp tool which offers a powerful command-line interface to application internals.

FLEX and Stetho can be categorized as "Mobile Runtime Inspector" tools.

Some of the features offered by FLEX are:

• Inspect and modify views in the hierarchy.
• See the properties and ivars on any object.
• Dynamically modify many properties and ivars.

On the other hand, Stetho provides the following key features:

• Chrome DevTools UI
• Network inspection
• Database inspection

FLEX and Stetho are both open source tools. It seems that Stetho with 11.2K GitHub stars and 1.03K forks on GitHub has more adoption than FLEX with 10.5K GitHub stars and 1.2K GitHub forks.