15 FREE steganography apps for mobile devices

Hide messages within innocent-looking photos and audio files from your phone or tablet.
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Steganography has been used for centuries to hide secret messages in places nobody would think to look, and the art has advanced to include using digital files as places of concealment. Secrets can be embedded within photo and audio files by replacing the least essential code with bits of the hidden data. Developers have come up with a wealth of applications that can do this work from mobile devices and many of them are free. Here is a sampling of 15 such apps available for Apple, Android and Microsoft devices.

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