Hemingway - Hemingway App makes your writing bold and clear.

Solo - Personal kanban boards hosted on your own server

exegesis - A writing app for disorganized, creative, nonlinear thinking

Cash App - The easy way to send, spend, bank, and invest.

Ghost - Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.