In the software testing industry, the acceptance of automation is a testament to the benefits that come along with it. Automation not only saves large amounts of time but also eliminates the scope for errors caused by human factors. In order to help testers automate their test scripts, a broad range of tools are available today. For the success of the project, choosing the right testing tool for your applications is imperative. The key factors a testing team should keep in mind before choosing a particular tool for testing an application: To test different features of an application, any tool may not be sufficient Rigorous research must be put into the product that will be tested for software Prior to the start of the testing phase, functionalities that will go through automation testing must be clearly chalked out Backup tools, just in case a certain tool fails to deliver, must be kept ready It is necessary to discuss the chosen testing tool with the involved team and other third parties involved in the project TestComplete: TestComplete is a testing tool for UI automation that SmartBear has developed. In the Gartner magic quadrant for software test automation, SmartBear has been nominated as a leader. For desktop, web, and mobile applications, TestComplete allows you to create, maintain, and run test scripts. You can increase test coverage with TestComplete and make sure you ship high-quality, battle-tested software. Calabash: A calabash is a testing tool for open source automation that works only on both iOS and Android native apps. The tool enables you to write and execute automated mobile application acceptance tests. It is not only open source but also cost-free as well. Xamarin develops and maintains Calabash. Appium: Appium is an open-source testing tool developed by Sauce Labs for automation. It is freely distributed by them as well. For everything related to mobile application testing, Appium markets itself as a one-stop solution. A hybrid, native, or web-based application is being developed, Appium can be used to test the application. And the best part about Appium is that it works on Mac, Windows, and a variety of Linux distributions and is cross-platform. Appium Studio: Appium Studio is an IDE developed by Experitest for the development and execution of mobile test automation using the Appium Selenium WebDriver API. It is a commercially enhanced version of Appium desktop, a tool discussed in this list earlier. When using Appium for testing applications, it addresses the key challenges faced by a tester. Appium Studio enables companies to release high-quality mobile apps in significantly less time. Robotium: Robotium is an Android application testing tool that is open source. The testing of native and hybrid applications is supported. In the case of automated black-box testing, Robotium has found widespread application. To prepare and execute test scripts, it utilizes JavaScript.