The Dwolla iOS SDK by Dwolla communicates with the API to implement payment features into mobile applications. Examples include lines of code to authenticate, send money, fetch account information, grab user's contacts, list a user's funding sources, and register a new account. Developers who work with iOS could create projects related to banking and finance in real time.
Omnipay is a PHP processing library that supports 26 reputable payment gateways, including PayPal and Stripe. This article shows you Omnipay's capabilities by verifying a customer's credit card information and then uses the SDK for making a payment through a Stripe payment gateway.