Custen

Custen is a private delayed-access vault for one master and a small group of trusted recipients. The master chooses a compatible Custen server, creates the vault, and enrolls each recipient either in person with a QR code or remotely with a short-lived invitation and a live safety-word comparison. The app does not include a default hosted server or public vault directory. Documents and private labels are encrypted on the iPhone before upload. A recipient can request a granted document, but the server enforces the master's chosen waiting period before encrypted content becomes available. The master can cancel a pending request or revoke access, including after the delay has completed but before the recipient downloads the document. Custen uses Face ID and device-bound keys to protect sensitive actions. It does not require an account or email address and contains no advertising,…