Android, the fastest growing mobile OS, testing is particularly important. The reason lies in the fast-growing competition on the market. Among its competitors are iOS, Blackberry, and Windows Phone, considered the 3 major brands for smart phones. Another reason is the great variation in the devices including differences in size and resolution of the screen version of Android, the presence of the front camera, NFC, external keyboard, CPU instruction set, etc.
Undoubtedly, the quality of the apps developed for the appropriate platforms is a very essential factor. Not all app developers can afford themselves a large fleet of test gadgets to test the performance of their applications.
Experience has shown that it is difficult for developers to objectively assess their projects. For this reason, developers outsource QA team to accompany the project throughout its life cycle. Everybody makes mistakes both beginning programmers and experienced teams of well-known companies.
However, experts in the field of testing and usability can keep the number of errors to a minimum. The result will be a high quality product, which significantly affect its rating and top positions. In any case, the developers and owners of Android-applications must be sure that their program will work correctly on all types of smart phones and tablets running this OS. This is one of the components of success in the market