Top 20 NuGet autolayout Packages

Easy API for using AutoLayout in iOS
Xamarin.iOS Fluent Auto Layout Extensions.
Package that handles scrollview in iOS applications (both 6 and 7 versions)
P/Invoke wrappers around the optimized Kiwi C++ implementation of the Cassowary linear constraint solver for MonoDroid.
Autolayout helper for Xamarin iOS applications.
Code auto layout in Xamarin iOS using fluent interface and reduce many boilerplate code required for a simple layout.
Xamarin.iOS Stripe.