  Mobile phones have been playing a very significant role in our daily
activities for the last decade. With the increase need for these devices,
people are now more reliant on their smartphone applications for their daily
tasks and many prefer to save their mobile data on a cloud platform to access
them anywhere on any device. Cloud technology is the new way for better data
storage, as it offers better security, more flexibility, and mobility. Many
smartphones have been investigated as subjects, objects or tools of the crime.
Many of these investigations include analysing data stored through cloud
storage apps which contributes to importance of cloud apps forensics on mobile
devices. In this paper, various cloud Android applications are analysed using
the forensics tool XRY and a forensics taxonomy for investigation of these apps
is suggested. The proposed taxonomy reflects residual artefacts retrievable
from 31 different cloud applications. It is expected that the proposed taxonomy
and the forensic findings in this paper will assist future forensic
investigations involving cloud based storage applications.
