In the vast and still evolving the world of digital transfer, data/image security is one of the most important considerations. One method is to encrypt files. One of the well-known mechanisms for maintaining privacy of pictures to a trustworthy, unrestricted public, the media as a result, this medium is vulnerable to attacks, Encryption algorithms that are effective are a must for data transfer that is stable a variety of techniques. This paper is a study of research authors in the field of image encryption for the Android Environment for different algorithms, with a research review for the period (2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019)(2020)(2021) to see how the field of image encryption has progressed and the best algorithms in their performance.