Rot13 Cipher
Free
1.1for iPhone, iPad
Age Rating
Rot13 Cipher Screenshots
About Rot13 Cipher
The Rot 13 Cipher is a cool way to encode and decode messages quickly on the iPhone. You can type a message into the app to encode it and then somebody else with the same app can type the encoded message into their app to decode it. This is also a useful way to hide spoilers. Since encoded messages look like random letters, the only way to read an encoded message is to go out of your way to decode it first.
The cipher works by exchanging every letter to the letter that comes 13 after it (wrapping around if need be). Because there are exactly 26 letters in the alphabet, performing this twice leaves you with the letter you started with. This is why the same cipher can be used to both encode and decode the messages!
A - N
B - O
C - P
D - Q
E - R
F - S
G - T
H - U
I - V
J - W
K - X
L - Y
M - Z
The cipher works by exchanging every letter to the letter that comes 13 after it (wrapping around if need be). Because there are exactly 26 letters in the alphabet, performing this twice leaves you with the letter you started with. This is why the same cipher can be used to both encode and decode the messages!
A - N
B - O
C - P
D - Q
E - R
F - S
G - T
H - U
I - V
J - W
K - X
L - Y
M - Z
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What's New in the Latest Version 1.1
Last updated on Dec 30, 2017
Old Versions
Added a Copy button so cipher results can be easily copied and pasted into other apps.
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Version History
1.1
Dec 30, 2017
Added a Copy button so cipher results can be easily copied and pasted into other apps.
Rot13 Cipher FAQ
Click here to learn how to download Rot13 Cipher in restricted country or region.
Check the following list to see the minimum requirements of Rot13 Cipher.
iPhone
iPad
Rot13 Cipher supports English
