# Crypton - Secure QR Generator > Securely generate and decode encrypted QR codes for private messaging using public key cryptography. (iPhone/iPad app by Project Babbage.) - Source: https://appshunter.io/ios/app/crypton-secure-qr-generator/id1671880722 (this page in markdown: same URL + `.md`) - Developer: [Project Babbage](https://appshunter.io/developer/1671222823) - Category: Utilities, Entertainment - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 15 MB - Languages: English - Released: 2023-05-22 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/crypton-secure-qr-generator/id1671880722/reviews.md ## What is Crypton? Introducing Crypton, the fun and secure way to learn the basics of public key cryptography with your friends! With Crypton, you can generate encrypted QR codes that only you and your friends can decode. It's easy to get started - simply sign up for an account and get your identity key. Then, share your identity key QR code with your friends and let them scan it to add your public key to their contacts. Once you and your friends have added each other's public keys to your contacts, you can exchange secure messages by creating encrypted QR codes that only you and your friend can read. To do this, your friend writes you a secret message, then generates a secret QR code using the "new message" button. You can then scan the secret QR code using the "decrypt QR code" button and your friend's public key in your contacts to reveal the secret message. Public key cryptography is a cutting-edge technology used in the modern era to secure and encrypt data. It works by using a pair of keys - a public key that can be shared with anyone, and a private key that only the owner knows. When data is encrypted using the public key, only the private key can decrypt it. This allows secure transmission of data without the need for a shared secret, making it ideal for secure messaging and other forms of communication. Crypton is a great way to explore and experiment with this exciting technology, and discover just how powerful and transformative it can be. Thanks to the power of public key cryptography, you can trust that only you and your friend can read your secret messages, even if someone else intercepts the QR code. It's a fun and unique way to learn about cryptography and keep your conversations private. Even if the QR code is in plain view, only you and your friend can ever read it. Don't wait - download Crypton today and start exchanging secure messages with your friends! ## Key features - Generate encrypted QR codes - Decode secret messages - Manage public keys - Learn public key cryptography - Securely exchange messages - Create identity keys ## Frequently asked questions about Crypton ### What is Crypton? Crypton is a free utility app that allows users to learn about public key cryptography by generating and decoding encrypted QR codes for secure messaging with friends. It helps users understand how public and private keys work to protect communication. ### How does Crypton ensure message security? Crypton uses public key cryptography to secure messages. When a message is encrypted with a recipient's public key, only their corresponding private key can decrypt it, ensuring that even if the QR code is intercepted, the message remains unreadable to others. ### Is Crypton free to use? Yes, Crypton is completely free to download and use. The app is available at no cost to users, and it does not feature any in-app purchases or advertisements. ### What devices does Crypton support? Crypton is designed for iOS devices, specifically supporting iPhones and iPods. It is suitable for users looking for a secure messaging and cryptography learning tool on Apple's mobile platforms. ### How often is Crypton updated? The latest version of Crypton, 1.0.1, was released on October 6, 2023. While specific update frequency isn't detailed, the developer, Project Babbage, has provided updates since its release on May 22, 2023. ### What is the age rating for Crypton? Crypton has an age rating of 4+, making it suitable for a wide range of users. This indicates that the content is generally appropriate for children and adults alike. ### Can I use Crypton offline? The description does not explicitly state whether Crypton can be used offline. However, generating and decoding QR codes typically requires an internet connection for account setup and key exchange. ### What are the benefits of using Crypton for learning cryptography? Crypton offers a hands-on and interactive way to learn public key cryptography. By actively generating and decoding encrypted QR codes, users can gain practical experience with encryption concepts in a fun and engaging manner. ## Version history (last 2 releases) ### 1.0.1 — 2023-10-06 Updates the QR code image generated for cross platform compatibility. ### 1.0 — 2023-05-22 No release notes. ## Apps similar to Crypton | App | Rating | Price | Category | | --- | --- | --- | --- | | [Plan M8](https://appshunter.io/ios/app/plan-m8/id1545925254) | — | Free | Utilities | | [Encryptor - Secure Your Files](https://appshunter.io/ios/app/encryptor-secure-your-files/id6686405231) | 4.0 (28) | Free | Utilities | | [Arrowat Encryptor](https://appshunter.io/ios/app/arrowat-encryptor/id1601767060) | — | Free | Utilities | | [CryptoFiles: Files Encryption](https://appshunter.io/ios/app/cryptofiles-files-encryption/id6446115800) | 5.0 (1) | Free | Utilities | | [Ramnia](https://appshunter.io/ios/app/ramnia/id1500265122) | 3.0 (2) | Free | Utilities | | [aQRmate](https://appshunter.io/ios/app/aqrmate/id1478150609) | — | Free | Utilities | ## More apps by Project Babbage - [Metanet Explorer](https://appshunter.io/ios/app/metanet-explorer/id6752445658) All apps by Project Babbage: https://appshunter.io/developer/1671222823 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*