Rot13 (Unix Flashback)
Free
2.1for iPhone, iPad and more
Age Rating
Rot13 (Unix Flashback) Screenshots
About Rot13 (Unix Flashback)
Rot-13 (short for rotate 13) is a simple letter substitution cipher that was popular in online forums for hiding spoilers, punchlines, offensive material, and other things from a casual glance. It works by replacing the current english letters in a message with those that are 13 positions ahead in the alphabet. For example, the letter a is replaced by n, b by o, c by p, etc. Numbers and punctuation are not encoded.
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What's New in the Latest Version 2.1
Last updated on Sep 27, 2019
Old Versions
Fixes problems with the keyboard and the share sheet.
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Version History
2.1
Sep 27, 2019
Fixes problems with the keyboard and the share sheet.
2.0
Sep 21, 2019
Rewritten for iOS 13 with a new look that supports Dark Mode and includes a share sheet extension and support for Siri Shortcuts.
1.1
Jan 20, 2019
Updated look, new info screen with description and links to new information. Party like it's 1979!
1.0
Jun 10, 2015
Rot13 (Unix Flashback) FAQ
Click here to learn how to download Rot13 (Unix Flashback) in restricted country or region.
Check the following list to see the minimum requirements of Rot13 (Unix Flashback).
iPhone
Requires iOS 13.0 or later.
iPad
Requires iPadOS 13.0 or later.
iPod touch
Requires iOS 13.0 or later.
Rot13 (Unix Flashback) supports English
