Appium is an open-source project and ecosystem of related software, designed to facilitate UI automation of many app platforms

Robotium is an Android test automation framework that has full support for native and hybrid applications.

Webomates provides cloud-based Testing as a service (TaaS) to leading software companies

One test framework, for ALL your apps Maestro is a single platform that tests all of your mobile and web apps - no matter what framework your team uses.

mabl is a low-code, intelligent test automation platform for Agile teams.

An open source Ruby library for automating tests.