Steganography is an art of hiding a secret data within another data for confidential communication. Applications may require a total or partial invisibility of the secret data. At present, numbers of data hiding algorithms have been used for image steganography based on the application requirement. These algorithms were designed concentrating on the least significant bits of the data. In this paper, a novel method for information security using image steganography technique as a mobile application is proposed. In this approach, all three LSB’s are considered instead of manipulating one bit. Bit masking concepts are used extensively for making it difficult to retrieve the data hidden. The application developed using the proposed algorithm allows a user to embed any kind of file inside a cover file instead of bytes of information. The password chosen should be of length 9 or more comprising of digits 0-9. This password acts as the stego key for both data embedding and retrieval, which allows the user to fix using Data Encryption Standard (DES) algorithm. This application can accept BMP, JPEG and JPG formats as the cover file. The size of the hidden message should be lesser than the cover file and it supports formats like MP3, DOC, PDF, BMP, JPEG, and JPG. Hiding the file of any format with more integrity using steganography is the major enhancement in the developed application HideItIn. © 2017, Institute of Advanced Scientific Research, Inc. All rights reserved.