Here is a first ever snapshot of my home-grown memory profiler for Xamarin.Android.
While very spartan it does the core job – comparing two snapshots for objects with growing instances (aka memory leaks). An array of Autofac.Core.IRegistrationSource[] is showing its references (one root, one to a List<>).
There you. Interested?
PS. Sample features DevExpress WPF components, chiefly XpfGrid.