Solo - Personal kanban boards hosted on your own server
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.
Cash App - The easy way to send, spend, bank, and invest.
PayPal.Me - Request money using your own personalized URL.
Bonsai - One platform to streamline your entire business
Gumroad Memberships - Earn your audience's ongoing support