Nowadays there are hundreds of mobile applications globally and numerous operating systems too. When we consider mobile app testing then it can be of two forms operating system versus mobile application or device model versus mobile application. Owner is informed about all operating systems that support any particular mobile application. It has been seen that some applications do not work for some operating system and this is the case where failure occurs.
In compare to web, mobile has far more variants and this is the prime reason why compatibility testing is done carefully for the mobile devices. Requirement for this type of testing is as below:
Testers need to be very careful about versions of operating systems as well as mobile applications.