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
Using Browserling, I never had a bad surprise. this tool is responsive and always offers the latest versions for each browser. I particularly recommend live testing which allows you to directly test the site and generate a screenshot if you have detected a bug or an anomaly in your interface. PS: I will give it 10/10 when recording videos of browsing sessions will be ready.
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.
For quicker and safe testing I always choose Browserling. It's also my best tool for responsive testing, as it allows me to resize the window and see how my interface looks in different screen resolutions. Browserling is better than others in manual testing because it has more features than others.