Sentry

Sentry is a self‑sovereign credential manager for iPhone, iPad, and macOS that stores passwords, PassKeys, and one‑time codes locally using Apple’s Secure Enclave and ChaCha20‑Poly1305 encryption. It synchronizes data peer‑to‑peer over Bluetooth across up to eight devices, provides native Safari AutoFill, biometric/PIN access controls, and encrypted backup/export without reliance on external servers.

Updated 2 months ago

Funding

Funding not disclosed

Funding rounds are not available yet.

Founders

Founder details are not available yet.

Product

Problem

Many password and authentication solutions store encrypted data in the cloud, exposing users to remote breaches, data‑leak risks, and reliance on internet connectivity for synchronization. Users who prefer to keep credentials offline or who need reliable sync across multiple Apple devices lack a self‑custodial alternative.

Solution

Sentry delivers a self‑sovereign credential manager for iPhone, iPad, and macOS that stores all passwords, PassKeys and one‑time codes locally on the device. The app uses Apple’s CryptoKit (ChaCha20‑Poly1305, Diffie‑Hellman, Salsa20) to encrypt an on‑device database whose keys reside in the Secure Enclave. Peer‑to‑peer Bluetooth communication enables automatic background synchronization between up to eight devices, even when they are in standby mode or offline. Users can fill credentials via native Safari AutoFill, share entries securely with end‑to‑end‑encrypted “quick‑share” protected by rolling PIN codes, and roll back any unintended changes using a built‑in history log. Optional biometric (Face‑ID/Touch‑ID) and PIN protection add layered access control, while backup can be exported to USB, iCloud or other cloud storage under the user’s own password. The solution therefore removes dependence on external servers while providing a full‑featured, cross‑device password management experience.

Target Audience

The primary users are privacy‑focused individuals and small‑to‑medium enterprises that manage sensitive credentials on Apple devices and require offline, self‑custodial storage without cloud reliance.

Features

Local peer‑to‑peer sync over Bluetooth with 256‑bit E2EE, supporting offline operation and standby‑mode devices
End‑to‑end encryption of stored data using ChaCha20‑Poly1305, Diffie‑Hellman key exchange, and Secure Enclave key storage
Native Safari AutoFill integration on iOS and macOS for one‑tap login of passwords, PassKeys (coming soon) and OTP codes
Secure Quick‑Share: encrypted credential transfer protected by rolling PIN codes and a confirmation‑code handshake to prevent MITM attacks
Full edit history with per‑entry rollback and versioning for accidental changes
Optional biometric (Face‑ID/Touch‑ID) and user‑defined PIN for multi‑factor local access
Flexible backup/export to USB drives, iCloud, Dropbox, OneDrive, or encrypted file with user‑chosen password
Open‑source core modules (35+ libraries) and support for YubiKey integration (planned)