iLend - Keep track of the things you lend and borrow.
PayRequest - SImple Fast Payment Links
Chargg Payment Platform - Accept payments, manage affiliates, analytics and more
PayPal.Me - Request money using your own personalized URL.
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.
Slowy app - Simulate custom Internet connection speeds for testing