
Description: Probiller is a cloud-based billing and invoicing software designed for small and medium businesses. It allows users to easily create professional invoices, automate recurring billing, accept credit card and ACH payments, manage contacts and track expenses.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Google Checkout is an online payment processing service that allows merchants to accept online payments. It allows customers to pay using credit cards, debit cards or Google Wallet without creating an account on the merchant's website.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API