Checkout Page - Sell on your site with customizable checkouts. Tailor-made one page checkouts to sell digital products & services without an ecommerce store.

Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!

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.

SplittyPie - Create event, add users and their expenses.

Stripe Payment Links - Create a link. Sell anywhere.

Kittysplit - The easiest way of sharing costs with a group of friends