
Description: Sinatra is a light-weight, open source web application library and domain-specific language written in Ruby. It allows developers to quickly create web applications and APIs with minimal effort.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Flask is a popular Python web framework that provides useful tools and features for building web applications. It is lightweight, easy to get started with, and flexible allowing developers to choose extensions.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API