CryptKB is an iOS app that lets users locally encrypt and decrypt messages using a custom keyboard and Messages extension. It employs strong AES-256 encryption, requires no account, and stores no data externally, making it suitable for users who prioritize privacy in their communications.
In the Security & compliance platforms space, CryptKB‑App takes a focused approach. It enables users to securely encrypt and share messages directly from their device without exposing plaintext to external services. It is built as a consumer product for privacy-conscious mobile users. The product is available for free. It runs on the web and iOS.
Behind CryptKB‑App is Seth Farrington18896201822, based in the United States, and the product first shipped in 2026. PulseGate's similarity index finds few close equivalents — CryptKB‑App occupies a relatively distinct niche. Key capabilities include local encryption, custom keyboard, and messages extension.
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