Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.
Cash App - The easy way to send, spend, bank, and invest.
SmartyBrush - A connected toothbrush
Facebook Pay - Send money to your friends via Messenger
Goodwell Toothbrush - Open source, eco-friendly toothbrush w/a subscription plan
PayPal.Me - Request money using your own personalized URL.