Dan Cunningham

RealtimeBoard 3.0 — Enhanced whiteboard. Your guide to the future of teamwork

Darwin — Uber-minimal active learning tool for you and your friends.

Sketch 40 — Latest version of the vector drawing tool

MapSwipe, by Ivan Gayton, Pim de Witte, Sadok Rabadan, Alison Malouf, and Pete Masters — Map the world's most vulnerable people in your spare time

Slack Emoji Reactions — Respond to any message with an emoji! 🎉😻🙌

GoodUI Evidence — GoodUI ideas which have been tried and a/b tested by readers

Hull.io — Social infrastructure for modern apps

Intercom — Communicate personally with every single customer.