The security test should attempt to test however much of the code base as could reasonably be possible. Android is rising as the most extended operating system in this viewpoint because of different reasons. No data related to the new vulnerabilities that could prompt to a weak programming on this stage is being revealed, realizing that this stage has an outstanding attack surface. Android gives a few alternatives to you to spare persevering application information. The storage you pick relies on upon your particular needs. For example, whether the information should be private to your application or open to different applications (and the client)”]
Source: https://gbhackers.com/penetration-testing-android-application-checklist/