The ratings with 0.5 stars on my listings are the ratings from the members of the gpg-suite team. Macupdate was contacted regarding the attitude and the behavior of the gpg-suite team against the other listings related to Cryptography. Macupdate is aware that a strong correlation exists between the 0.5 stars ratings on my listings and the 5 stars ratings on the gpg-suite listing | Rbcafe
It's a fine software. However not for me. I've been using a Windows tool that lets me hide even large files in small JPEGs. With Outguess you get an error message when e.g. trying to hide a 4 MB zip file in a 50 KB JPEG. But it's at least a start: finally we have a steganography application for macOS.
This is the first steganography app since OS 9. Steg is more obfuscation than cryptography but more than effective for most purposes. Seriously GREAT app!