DualisOne Authenticator

DualisOne Authenticator generates the six-digit verification codes used for two-factor authentication, keeping your accounts protected with a second layer of security beyond your password. EVERYTHING STAYS ON YOUR DEVICE Your keys never leave your iPhone. There is no account to create, no sign-in, and no server: the app makes no network requests at all. Codes are calculated on the device from your stored key and the current time, so they work anywhere — on a plane, underground, or with no signal at all. SIMPLE TO SET UP Add an account in seconds by scanning the QR code shown by any service that offers two-factor authentication. If you would rather not use the camera, type the setup key in by hand instead. BUILT FOR SECURITY Your keys are stored in an encrypted vault, sealed with AES-256-GCM using Apple's CryptoKit. The encryption key is held in the iOS Keychain, restricted to this device and available only while it is unlocked. There is no cloud backup and no sync, because your keys are never transmitted anywhere. FEATURES • Six-digit codes that refresh every 30 seconds • Add accounts by scanning a QR code or entering a key manually • Works with any service supporting the TOTP standard (RFC 6238) • Fully offline — no account, no sign-in, no network access • Encrypted on-device vault protected by the iOS Keychain • Clean, uncluttered interface • Free, with no advertising and no in-app purchases WORKS WITH THE SERVICES YOU ALREADY USE DualisOne Authenticator implements the open TOTP standard, so it works with any website or service offering authenticator-app two-factor authentication. Part of the DualisOne workspace suite.