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

Prompts - Build a better writing habit

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.

Frost - An open API for Blockchain timestamping

Solo - Personal kanban boards hosted on your own server

Facebook Pay - Send money to your friends via Messenger