Compare
How a Ferrum app sits next to a tool you may already use: what each does today, and when the other one is the better fit.
Comparisons
FerrumContainers vs Docker Desktop
They aren't alternatives in the usual sense. Docker Desktop ships a container engine with a dashboard; FerrumContainers ships no engine and talks to the one you run, Docker Desktop's included.
FerrumAPI vs Postman
FerrumAPI covers the everyday Postman basics on your Mac alone: no account, no cloud, data in a local file. Postman is a broader platform built around shared, synced workspaces.