OTP Auth vs Auth.Jc

Keep your two-factor codes in one place. OTP Auth is an authenticator for iPhone and iPad that generates verification codes offline and helps you find the right account with groups and search. Generate codes, even offline • Add accounts by scanning a QR code, reading one from an image, or entering a setup key manually. • Generate TOTP and HOTP codes without an internet connection after setup. • See the countdown for time-based codes and tap to copy. Keep accounts organized • Separate work and personal accounts with custom groups. • Drag to reorder and search by name. • Choose icon symbols and colors, with light and dark themes. Codes within reach • View TOTP codes in Home Screen and Lock Screen widgets, or on Apple Watch. • Search accounts and add favorites on Apple Watch. • Lock Screen widgets require iOS 16 or later. Choose your protection • Authentication keys are stored in the device's system Keychain. • Enable the Face ID or Touch ID app lock and choose to hide codes by default. Premium: sync, back up and transfer The following features require an in-app purchase: • iCloud sync: sync authentication accounts between devices. • Encrypted backups: export a password-protected backup and import it when moving to a new device. • Account transfers: import supported authenticator backup files or transfer QR codes. • Service logos: match accounts with their services' icons. Code generation, QR setup, groups, search, icon symbols and colors, widgets, and Apple Watch features are free to use. Works with websites and services that support TOTP or HOTP. Enable two-factor authentication with the service before adding its account to OTP Auth.

Auth.Jc is a full-featured authentication demo built with React Native. It showcases a production-ready auth stack with multiple sign-in methods, secure credential storage, and a polished iOS UI. Sign-In Options • Apple Sign-In (iOS only) • Google Sign-In • GitHub Sign-In • Email and password • Biometric login — Face ID and Touch ID Security • JWT access and refresh tokens with automatic refresh interceptor • Credentials stored in the device Keychain — never in plain storage • SSL certificate pinning • Rate limiting on login and password reset attempts • Input sanitization and XSS prevention Features • Push notifications via Firebase Cloud Messaging • Deep linking for password reset flow • Dark and light themes with multiple color palettes • Profile editing with photo upload • Localization — English and Spanish • Portrait-optimized for iPhone Auth.Jc is an open-source portfolio project demonstrating modern React Native architecture. It is not a production identity provider.