The Hider is described as 'Steganography app which use recent techniques (2017 paper) resistant to statistical attacks. png/bmp only' and is an app in the file management category. There are four alternatives to The Hider for Mac, Windows and Linux. The best The Hider alternative is SilentEye, which is both free and Open Source. Other great apps like The Hider are iSteg, Outguess and DeepMP3.
SilentEye is a cross-platform application design for an easy use of steganography, in this case hiding messages into pictures. It provides a pretty nice interface and an easy integration of new steganography algorithm and cryptography process by using a plug-ins system.
iSteg is an encryption tool used to hide a file (for example a zip archive) inside a jpeg picture. This encryption technology is called steganography. iSteg is a frontend for the opensource tool outguess 2.0. iSteg can be used to both encode and decode a hidden file.
Outguess is an advanced steganography tool. Outguess will hide your file inside the picture of your choice in easy steps :
France
EU
The Hider operates for Pictures. DeepMP3 works for audio. They are different beasts