A simple binding for Apple's internal UIDebuggingInformationOverlay, ported from Ryan Peterson's blog post.
Blog post about the porting here.
Just copy UIDebuggingInformationOverlay.cs in your project, it works as-is.
Install-Package Kipware.UIDebuggingInformationOverlay
This package calls iOS internal APIs, using this may cause your app to be rejected from the App Store. Use at your own risk.