Steganography: Hidden Message vs Sub Cipher Usage & Stats
Have you ever wanted to hide a secret message inside a photo?
With Steganography, you can encode a message or image in a picture and then save it or send it to a friend. The message can only be decoded using the same app, but if you want to ensure that only the intended receiver can read the message.
Steganography is the best steganographic app available for iOS. Send messages and images without anyone knowing.
Steganography is the practice of hiding data in plain sight. Pictograph works by changing the least significant bits in each pixel in a specific way so that a message can be hidden. Because Pictograph only changes the least significant bits in a pixel, the change is imperceptible to human eyes.
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Sub Cipher is an easy-to-use Encoder/Decoder app, which can encode or decode "simple substitution ciphers."
It works on the "Caesar" and "Atbash" style cipher methods, which are simple offset-alphabet ciphers. The well-known "Rot13" cipher is one of these.
Simply type or copy-paste your encoded or decoded text to and from e-mail, messages, social media, and it is immediately converted for you. Up to 2,000 characters can be converted at a time.
Sub Cipher creates the encoded text, placeholder-text, and even a magic decoder wheel that you can add to your own books and publications.
You can also capture the settings you have dialed in (as lines of text) to save in another document. This can be useful if you are publishing a newsletter or book of ciphers, and want to keep the settings you used with each cipher along with the cipher itself.
Here are the main features:
*Easy to use. Type into the plain-text or the cypher-text box, and the converted text is immediately displayed.
*Easy to transfer. You can select all the converted text and paste it into any other text document.
*Easy to adjust. Any substitution offset, forward or reverse can be dialed in.
*Easy to save. The settings you dial in can also be saved as text for your notes.
*Easy to publish. Any ciphers you make are yours to re-print or sell -- No licensing or credits or royalties are required.
Caveat Emptor: These ancient styles of ciphers are very simple and easy to decode! This is simply a fun educational utility, and is not intended for serious "secret message" work.
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- Free
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Steganography: Hidden Message VS. 
Sub CipherJanuary 12, 2026