Apps similar to 99tests include BrowserStack. It's paid, but Utest is free. Other options are Headspin, Rainforest QA and pCloudy. In total there are five Automated Testing Tools like 99tests for the web, Mac, Windows and Linux.
BrowserStack is the world’s largest cloud platform for software testing, with 20,000+ real Android and iOS devices that allow developers to comprehensively test their websites and apps for functionality, performance, and visual appeal.
India
HeadSpin is a Digital Experience AI Platform that combines a global device infrastructure, test automation, and ML-driven analytics.
United States
uTest is a global community dedicated to being the most inclusive, informative, & important brand in the lives of testers. We want to elevate the profession for you, for your co-workers, for your friends, and for your boss. As you explore uTest, you’ll see:
The Rainforest Continuous QA Platform provides on-demand manual QA-as-a-Service so that agile and continuous deployment teams can develop software quickly without compromising quality.
United States
pCloudy is the most powerful cloud based App Testing Platform. It has the most comprehensive set of Mobile Devices & Tools to Improve Quality of your App. pCloudy provides single click access to 500+ Android & IOS devices directly from your browser.
