PayPal.Me - Request money using your own personalized URL.
Balance Checkout - The first B2B checkout
Solo - Personal kanban boards hosted on your own server
Checkout Page - Sell on your site with customizable checkouts. Tailor-made one page checkouts to sell digital products & services without an ecommerce store.
Zipsell - A free, open source platform for selling digital downloads
Cash App - The easy way to send, spend, bank, and invest.