Responsinator - Designed to test responsive websites on different devices.
Uxcel - The easiest way to learn UX/UI design
BareMetrics - SaaS Analytics for Stripe
uxtoast: Learn UX Design - Become familiar with design laws and learn how to use them.
Probe - Revenue metrics. Sales metrics. Business costs. All in one place.
Awwwards Academy - Leading thinkers teach digital talent on awwwards academy