
Description: PaySpace is an online invoicing and billing software designed for freelancers, consultants, and small service businesses. It allows users to create professional invoices, accept online payments, track expenses, and manage clients and projects.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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