AuthinCore Authenticator

AuthinCore Authenticator generates the rotating 6-digit two-factor (2FA) codes that protect your online accounts — built to be the smallest and most secure authenticator on Android. WHY IT'S DIFFERENT • Hardware-backed security — your secret keys are sealed inside the Android Keystore (StrongBox secure element where available) and are non-exportable. They can only be used within seconds of a biometric or device-PIN unlock. • Truly offline — the app makes ZERO network requests. No account, no sign-up, no cloud. Your codes never leave your phone. • No tracking, no ads — we collect nothing. There is no analytics SDK and the app cannot even reach the internet (no INTERNET permission). • Tiny footprint — native Kotlin, no embedded browser or JS runtime. FEATURES • Standard RFC 6238 TOTP — works with Google, GitHub, Microsoft, AWS, social networks, banks, and any service that supports authenticator apps. • Add accounts by scanning a QR code, pasting an otpauth:// link, or entering a setup key manually. • Live codes with a per-account countdown ring; tap to copy. • Search your accounts by name; clear, brand-tinted icons. • Biometric / device-credential unlock on every open. • Screenshot and screen-recording protection while the app is open; auto-locks the moment it goes to the background. MOVE TO A NEW PHONE WITHOUT THE CLOUD • Device-to-device transfer — show an animated QR on your old phone, scan it on the new one. Secrets travel directly, password-encrypted, never via a server. • Encrypted file backup — export a password-protected backup file to a folder of your choice. The backup is encrypted on your device; only your password can open it. PERMISSIONS • Camera — used only to scan setup QR codes. No photos are saved or sent. AuthinCore Authenticator pairs with the AuthinCore identity platform but works as a standalone authenticator for any TOTP-based service.