If none of the other test automation frameworks here fits your needs, you can always try OpenTest. This framework can help you automate tests for web and mobile apps, as well as your APIs. It has a strong focus on scalability and extensibility, but its main strength is that its features set doesn’t require you to be an expert testing engineer to get your tests going. 

OpenTest is a free and open source functional test automation framework for web applications, mobile apps and APIs, built for scalability.