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Screenshots
Description
This app contains 12 different methods for encrypting and decrypting secret messages. We will be adding more methods with future updates! Learn about cryptography with CodeBook.
•• Monoalphabetic Ciphers ••
A monoalphabetic cipher replaces one letter with another and uses the same substitution across the entire message. The popular Cryptogram puzzles that you see in newspapers and puzzle books are all monoalphabetic ciphers.
1) Caesar Cipher
2) Atbash Cipher
3) Keyword Cipher
4) Polybius Square Cipher
•• Polygraphic Ciphers ••
Instead of substituting one letter for another letter, a polygraphic cipher performs substitutions with two or more groups of letters. This has the advantage of masking the frequency distribution of letters, which makes decryption much more difficult.
5) Playfair Cipher
6) Bifid Cipher
7) Trifid Cipher
•• Transposition Ciphers ••
Unlike substitution ciphers that replace letters with other letters, a transposition cipher keeps the letters the same, but rearranges their order according to a specific algorithm.
8) Rail Fence Cipher
9) Columnar Transposition Cipher
•• Codes ••
A code is a monoalphabetic cipher that is standardized. Because everyone knows the secret, these are not use for encrypting messages, but instead for encoding the message in a format that is more convenient for certain purposes.
10) Morse Code
11) Tap Code
12) ASCII Code
Note: This app is for educational and entertainment purposes. None of the encryption methods in this app are safe enough to use for actual secret messages.
Estimates
Search Keywords 2
| # | Term | Country | Place | Priority |
|---|---|---|---|---|
| 1 | toodledo | #6 | ⭐️⭐️⭐️⭐️ | |
| 2 | morse code decoder | #8 | ⭐️⭐️ |
Competitors
| # | App | Common keywords |
|---|---|---|
| 1 | Learn Morse Code | 7 |
| 2 | Morse code for study | 7 |
| 3 | Morse Decoder Pro | 7 |
| 4 | Sasha Morse Coder - Free Morse message encoder | 7 |
| 5 | Valiance Backbone for CW - VBC | 7 |
| 6 | X Morse–Convert between Morse Code & Text | 6 |
| 7 | X Morse Pro–Convert between Morse Code & Text | 6 |
| 8 | Morse Transmitter | 6 |
| 9 | Morse Communicator | 5 |
| 10 | Toodledo | 3 |
| 11 | Braingle HD - Brain Teasers & Riddles | 3 |
| 12 | ActionAgenda Lite | 3 |
| 13 | ActionAgenda | 3 |
| 14 | Wocka - Jokes and Humor | 3 |
| 15 | Morse Code Reader and Decoder | 1 |
| 16 | Morse Code Keys - Trainer | 1 |
| 17 | Morse Code Keys | 1 |
| 18 | Bravo - Morse Code Trainer | 1 |
| 19 | 摩斯密碼 | 1 |
| 20 | Notebook | 1 |
| 21 | Checky Lite: Checklist, Action | 1 |
| 22 | ToodleDue To Do Lists | 1 |
Availability
Devices
iPhone3GS
iPadWifi
iPad3G
iPhone4
iPodTouchThirdGen
iPodTouchFourthGen
iPad2Wifi
iPad23G
iPhone4S
iPadThirdGen
iPadThirdGen4G
iPhone5
iPodTouchFifthGen
iPadFourthGen
iPadFourthGen4G
iPadMini
iPadMini4G
iPhone5c
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
Pricing by country
| Country | Price |
|---|---|
| Canada | 1.39 CAD |
| China | 6 CNY |
| France | 1.09 EUR |
| Germany | 1.09 EUR |
| Italy | 1.09 EUR |
| Netherlands | 1.09 EUR |
| Portugal | 1.09 EUR |
| Spain | 1.09 EUR |
| Poland | 1.09 EUR |
| UK | 0.99 GBP |
| India | 79 INR |
| Japan | 120 JPY |
| Poland | 4.99 PLN |
| Russia | 75 RUB |
| Turkey | 4.49 TRY |
| USA | 0.99 USD |
| Korea, Republic Of | 1.09 USD |
| Ukraine | 0.99 USD |
