Show HN: Krypter – simple offline message and file encryption mobile app

Category: security

Tags: encryption, privacy, ios, hpke, offline

Score: 5.7/10 (Innovation: 5, Technical: 6, Documentation: 4, Utility: 6)

Krypter is an iOS app for offline encryption of messages and files using HPKE and CryptoKit, featuring Secure Enclave-bound keys, deep link sharing, and plausible deniability. It offers a lightweight, privacy-focused alternative to GPG with no network requests or analytics, leveraging native Apple cryptography for security.

Target audience: privacy-conscious users, security professionals, iOS users

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