1. It's open source which supports range of languages, operating systems and languages. Well suited for Android and IOS mobile automation. Supports all kinds of apps, which makes it flexible and robust mobile testing tool 2. It is less appropriate where we need intercept network call to verify the API calls. Extensive coding experience is required to work Appium
Before, I received a lot of bad feedback from my users because my site was not compatible with certain browsers and operating systems. but now with TestingBot I can automatically test my website with the most used systems and fix these bugs and avoid losing customers. TestingBot integrates with the most popular continuous integration platforms such as Jenkins, TeamCity, GitHub Actions, and more. The browser and device grid are compatible with Selenium, Appium, Cypress, and other frameworks.
I would like to give 9/10 rating to Appium because of it can easily integrate with popular frameworks and CI/CD tools, as well as it is reliable, flexible and easy to use. The setup can bit complex in initial step, but once on configured it's very easy to use and enables stable and scalable mobile automation for real and cloud devices.
If you're an Apple developer, you use Xcode. It's practically a forced necessity. For system testing though, it doesn't have to be. You can have your development team focus on unit and integration tests in their platform and another team automate acceptance tests with a language they are more familiar with.
I chose TestingBot because it is easier to install on my site as well if you compare it with other testing services that I have known. Also, the live interactive testing is very fluid with TestingBot which was not the case with the other tools.