GumHub - Sell access to your GitHub repos with Gumroad
Charts Factory - Create simple charts super fast and for free!
Gumroad Memberships - Earn your audience's ongoing support
FnordMetric - Create charts and dashboards from SQL
Gumroad Genius Desktop App - Elevate Your Gumroad Experience with a Dedicated Application
Mountain - Living seamlessly in the menu bar Mountain allows you to manage volumes with ease.