1. Home
  2. πŸ”§ Utilities
  3. Sub Cipher
Sub Cipher

Sub Cipher

Encode and Decode Messages

4 ratings
3 reviews
πŸ”§ Utilities
🎬 Entertainment
Free

Details

  • Released
  • Updated
  • August 31, 2021
  • April 18, 2026

Developer

Eduard Schwan
✨Promote your app ✨
Sub Cipher screenshot #1 for iPhone
Sub Cipher screenshot #2 for iPhone
Sub Cipher screenshot #3 for iPhone
Sub Cipher screenshot #4 for iPhone
Sub Cipher screenshot #5 for iPhone
iphone
ipad
⭐3
Reviewsβ†˜οΈŽ
πŸ“3+ tags
Tagsβ†˜οΈŽ
πŸ”„6+ apps
Alternativesβ†˜οΈŽ
❓8 answered
FAQβ†˜οΈŽ
πŸ“¦~ in 6 months
Updates frequencyβ†˜οΈŽ
πŸ–ΌοΈGet Icon
Iconsβ†˜οΈŽ

About

Easily encode and decode messages using simple substitution ciphers like Caesar and Atbash. Convert up to 2,000 characters at a time and save your cipher settings for later use. Ideal for fun educational purposes, not for serious secret messaging.

βœ“Encode/decode simple substitution ciphers
βœ“Supports Caesar and Atbash cipher methods
βœ“Converts up to 2,000 characters at once
βœ“Save cipher settings as text
βœ“Create magic decoder wheels
βœ“No licensing or royalties required for published ciphers
Show original description

What's New in Sub Cipher

1.2.0

April 18, 2026

* Better UI Layout: All the "copy" action buttons are collected along right side of window. * New "Settings" screen lets you adjust the font/colors of the "Secret Decoder Ring" graphic image. * Added a new Intro screen to showcase the new "Secret Decoder Ring" wheel. * Updated minimum OS version to iOS 16. * Intro button has changed to be (i) circle button at top of window. * Better support of new app icons for iOS 26.

More

User reviews

Most RecentHighest RatedLowest Rated

Great Software

Sub Cipher is a great software. It is so easy to use and works without flaws. You can type in your regular words or phrases and it automatically encrypts them according to the adjustable offset. You can make the offset either forward or reverse. This makes it so easy to create educational books. You can copy the plain text that you have inputted and then copy the automatically ciphered text and paste it in a slide presentation or book. This software works flawlessly and has such a well thought out aesthetically pleasing User Interface.
Show more
Very-happyVery-happy

Great piece of software

Mainly a simple substitution, but fun to use. There’s so many ciphers out there, I’d like to see a few more. Good job!
46389 time46389 time

Good fun

I know its a cypher, but I used this little app as a unique name creator for an alien planet that features in my novel. An will use again. Thanks to the developer for that.
HatonnHatonn

Developer apps

Romanoff
Romanoff

Convert Roman/Arabic Numbers

πŸ” Reference

(2)

Free
Ask Fortuna
Ask Fortuna

by Eduard Schwan

🎬 Entertainment

(6)

Free
In-App Purchases
Pass the Phrase
Pass the Phrase

Instant Password Inspiration

πŸ”§ Utilities

(1)

Free
Lyttony
Lyttony

Novel cure for writer's block

πŸ“š Education

(2)

Free $0.99
In-App Purchases
Sheer Abstractions Stickers
Sheer Abstractions Stickers

Abstract Designs and Patterns

πŸ’Œ Stickers

(1)

Free
Pattern Bliss
Pattern Bliss

The Future Seams Infinite

🎨 Graphics & Design
$4.99
See developer apps

FAQ

What types of ciphers does Sub Cipher support?

Sub Cipher supports simple substitution ciphers, specifically mentioning Caesar and Atbash style methods. Rot13 is also noted as an example of these simple offset-alphabet ciphers.

What is the character limit for encoding or decoding in Sub Cipher?

Sub Cipher can convert up to 2,000 characters at a time. This allows for the encoding or decoding of reasonably sized messages.

Can I save the cipher settings I use in Sub Cipher?

Yes, Sub Cipher allows you to capture the settings you dial in as lines of text. These saved settings can be stored in another document, which is useful for keeping track of cipher configurations for newsletters or books.

Is Sub Cipher suitable for serious secret message work?

No, Sub Cipher is described as a fun educational utility. The ancient styles of ciphers it uses are very simple and easy to decode, making it unsuitable for serious secret message work.

Does Sub Cipher have ads?

No, Sub Cipher is ad-free. The application does not contain advertisements, providing an uninterrupted user experience.

What devices is Sub Cipher available on?

Sub Cipher is supported on Mac, iPhone, iPad, and iPod devices. This broad compatibility allows users to access the utility across various Apple platforms.

How often is Sub Cipher updated?

The latest version of Sub Cipher is 1.1.0, which was last updated on September 23, 2025. This indicates a recent update, suggesting ongoing support and potential for future improvements.

What is the user rating for Sub Cipher?

Sub Cipher has a rating of 2.5 stars based on 2 ratings. This indicates a mixed reception from its current user base.