Cipher Bench does not collect, sell, rent, or share personal information. Messages, keys, substitutions, challenge attempts, and analysis results are intended to remain on the user's device.
About Cipher Bench
Cipher Bench is an educational cryptography application that lets users encode, decode, inspect, and attempt to crack messages using classic cipher systems.
The app works without an account, sign-in, or personal profile.
Personal Information
Cipher Bench does not collect names, email addresses, phone numbers, passwords, payment details, contacts, precise location, or other identifying information.
The developer does not maintain a remote user database.
Messages and Cipher Keys
Text, keywords, shifts, substitution mappings, and cipher settings are processed only to perform the operation selected by the user.
Classic Cipher Modules
Cipher Bench may include several educational cipher systems:
Simplified RSA Demonstration
The RSA module may show small prime numbers, key generation, modular arithmetic, encryption, and decryption step by step.
Cracking and Analysis Tools
Frequency charts, Caesar brute-force sweeps, substitution grids, and pattern tools operate only on text entered or provided inside the app.
Analysis results are generated locally and are not submitted to the developer.
Puzzle Records
Cipher Bench may store challenge completion, attempts, hints, solved messages, and learning progress in local application storage.
Results are not linked to an online identity or submitted to a public leaderboard.
Local App Data
The app may save basic preferences, selected cipher options, challenge progress, and recent educational examples locally.
This information generally remains until the user clears the app's data or uninstalls Cipher Bench.
Device Permissions
Cipher Bench does not request access to contacts, camera, microphone, photos, messages, call history, precise location, or personal documents.
Advertising and Analytics
Cipher Bench does not display third-party advertisements and does not use advertising identifiers, cross-app tracking, behavioral profiling, or analytics services that collect personal information.
Third-Party Sharing
Cipher Bench does not sell, rent, trade, or disclose messages, keys, ciphertext, analysis results, challenge activity, or personal information to advertisers or data brokers.
Educational Security Notice
Cipher Bench is designed for learning and experimentation. Classical ciphers and simplified RSA examples may be weak or intentionally breakable.
The app should not be treated as a certified security tool for protecting sensitive real-world information.
Children's Privacy
Cipher Bench does not knowingly collect personal information from children or from any other users.
Removing Local Data
Locally stored information can generally be removed by resetting progress, clearing the app's storage, or uninstalling Cipher Bench.
Changes to This Policy
This Privacy Policy may be updated if future versions introduce new features or change how information is handled.
The latest version will remain available on this page.
Last updated: August 6, 2026
Contact the Developer
Questions about Cipher Bench or this Privacy Policy may be sent to: