
Description: Square Point of Sale is a free mobile point-of-sale app that allows businesses to accept credit card payments using a smartphone or tablet. It offers a complete POS solution including inventory management, customer profiles, invoice creation, employee management, and sales analytics.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PayPal Here is a mobile payment processing app and hardware solution that allows small businesses to accept debit and credit cards using a smartphone or tablet. It offers a mobile card reader and an app to take payments anywhere.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API