PayPal's top features include PayPal Express checkout for companies that accept credit cards; PayPal Payments Standard for basic payment plans. Moreover, with the PayPal Payments Pro, you can host a checkout on your website, while it also boasts a feature that allows you to set up recurring payments.

Freelancers and contractors can use online invoicing that is quick and easy to use for the services they perform. PayPal has also developed a mobile app for collecting payments on the go.

Square offers complete, 360° online store solutions, from the creation and implementation process to integration of the payment APIs. They are also big on contactless service and chip card readers.

Don't be mistaken, Square is very much a payment tool and it offers all the necessary services. You can still send money, get paid, and invoice online through them, but that's just part of the picture. You should check them out and their broad array of services!

When you say "Amazon", there's almost no description needed. However, Amazon Pay is a relatively new player. It was launched in 2007 as a payment solution that uses all the payment details stored in your Amazon account.

It has evolved ever since and today is a serious contender for the best payment tool on the market. These days, you can tell Alexa to pay using Amazon Pay, no additional touch needed. However, integrating the Amazon Pay payment gateway could prove a little complicated.

Although it is run by PayPal, Braintree provides its own share of advanced payment features and seemingly better customer support. Braintree is the "young kid on the block" teaching its grandpa PayPal some tech-focused payment solutions and tools.

Things like recurring billing, customizable sales reporting, and seamless integration with other third-party apps and services like BigCommerce, Shopify, Magento etc are part of Braintree. It also offers Python, PHP, Java, iOS, and Android libraries.

BlueSnap offers a wide range of payment tools, much like its rival PayPal. You can create a merchant account, where you can manage your payment gateway and processing. The platform also offers mobile checkout, marketplace payments and a performant API.

It's got 3D secure and it is PSD2 compliant. It can integrate with more than 100 third parties, and it offers something more than PayPal- Intelligent Payments Routing.

WePay is a payments API company that has built its API specifically for platform businesses like marketplaces, crowdfunding sites and small business software. These platforms are empowering millions of users worldwide to unlock all kinds of creative commerce.

Through its proprietary Veda social risk engine, WePay gives platforms a flexible payments API that provides a great user experience while still being able to take on all their fraud risk and compliance burdens.

Paymill is the fastest and easiest way to accept payments online. You can start the integration process right away. This tool does onboarding within 48 hours (including merchant account) and with top-notch support. No registration is necessary to test the features of their API.

They take care of everything: storing credit card information, payments, subscriptions, and payments made to your bank account.

Chargebee is a subscription management and recurring billing solution that is simple, secure and affordable for all. It's designed for subscription businesses of all sizes across industries. Whether you're a new company getting off the ground or an enterprise with complex needs, Chargebee has your back.

Define recurring billing frequencies and get paid automatically. Combine recurring, one-time and usage-based pricing models with ease. Build tighter integration using their great API.

Zuora has been enabling the Subscription Economy by building the next generation commerce platform. By attracting hundreds of customers, Zuoras subscription management software has enabled 21st-century businesses around the world from startups to enterprises in any industry to launch and monetize any subscription products and services.

Zuora allows you to manage quotes, orders, billing and revenue recognition for the entire customer lifecycle on a single platform.

As the leading recurring billing platform, Recurly ensures setup is easy, integrations are quick and their service scales up to meet the needs of your business.

With Recurly you'll be ready to accept payments and focus on growing your sales in no time. This tool handles all the complexities of subscription billing and recurring payments.