When it comes to mobile testing, two questions come in mind: "What are devices it supports and how do we test on all these devices?" It’s quite challenging to manually test on all devices and it’s not cost-effective either. Automating test cases saves of lots of time. Another challenge is running automation on actual devices.

There are multiple solutions that run automation on cloud, such as AWS Device Farm, Firebase Lab, Xamarin Test Cloud, Kobiton, Perfecto, Sauce Labs, and Experitest.