One-Time Pad at App Store analyse

App power index: 180 (based on ranks around App Stores today)
Utilities Education
Developer: Matt Borja
Price: 0 free
Current version: 1.1, last update: 7 years ago
First release : 05 Dec 2016
App size: 12.37 Mb
4.8 ( 1008 ratings )
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Estimation application downloads and cost

> 3.96k
Monthly downloads
~ $ 1.62k
Estimation App Cost


Implements true one-time pad principles and best practices to the extent possible on a mobile device, including:

- Single-use, message-length secret key material generated from /dev/urandom
- Calculations performed digit-by-digit (modulo 10) using standard English-optimized checkerboard
- Tap "Cipher" to generate and copy message-specific key to clipboard
- Paste one-time pad (key) into Plaintext and tap "Cipher" to decrypt Ciphertext to clipboard.

Disclaimer: Computers and smartphones used to perform encryption are primary targets for recovering plaintext and thus are NEVER suitable for cryptographic applications due to the complexities they present. Users should consider this app for academic purposes only and are hereby warned when using this [or any other] application for encrypting sensitive information, even when used in a secure and isolated (disconnected) environment.
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# Term Store county Place Priority
1 onetime messenger 3
Available in countries
Country Price
Canada 3.99 CAD
USA 2.99 USD
Available for devices
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,