Authenticator is a secure two-factor authentication app for managing one-time passwords across iPhone, iPad, Mac and Apple Watch. I worked on the production experience around OTP management, security and native Apple-platform integrations.

I built features including a secure OTP vault, Keychain-backed protection, password generation and real-time OTP updates. I also implemented Dynamic Island support so users can view a selected authentication code and its remaining time directly from the system interface without reopening the app.

The product supports QR-based and manual account setup and is designed around fast access to authentication codes while keeping sensitive information protected. My work focused on combining security, native platform behavior and a responsive user experience across Apple devices.