
Description: Billsby is an invoicing and billing software designed for freelancers, consultants, and small business owners. It allows you to easily create professional invoices, track payments and expenses, manage clients and projects, and automate billing and collections.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SubscriptionFlow is a subscription management and recurring billing software designed for online businesses. It provides customizable subscription plans, automated recurring billing, payment collection, and retention features to manage customer subscriptions and reduce churn.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API