
Description: GNU Taler is an open source electronic payment system that focuses on privacy and security. It allows making secure and private payments with information about payments only shared between payer and payee.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API