iAuth: 2FA

iAuth keeps your two-factor verification codes close at hand on iPhone, iPad, and Mac. CODES AT A GLANCE See time-based codes and their remaining validity on the home screen. On iPhone and iPad, tap an account to copy its code and touch and hold for account actions. Search and groups help you find the right account quickly. USE IT OFFLINE Generate TOTP, HOTP, and Steam Guard codes on your device. Offline mode works without an account or a backend connection. Add accounts manually, paste an otpauth link, or import a QR code image. iPhone and iPad also support camera scanning. CONNECT YOUR OWN SERVER Optionally connect to a compatible self-hosted 2FAuth C# server using an access token or server credentials. Offline and server workspaces remain separate; switching does not transfer account secrets. RECOGNIZABLE ACCOUNT ICONS Choose your own image, use website icons, or install compatible icon packs. Customize the automatic source order for each account. Cached and local icons remain available without a network connection. BACK UP WITH A PASSWORD Export an encrypted backup of your offline accounts, parameters, and groups. Preview a backup before merging it into your vault. Keep your backup password safe: it cannot be recovered. BUILT FOR APPLE A native interface, light and dark appearances, Dynamic Type, and English, Simplified Chinese, and Traditional Chinese. Secrets and saved server tokens are stored in the system Keychain. Optional device authentication protects access, background previews are obscured, and copied codes expire from the clipboard after about 30 seconds. HOTP counters advance only when you explicitly generate a code. Copying the current HOTP code does not advance the counter. A compatible server and a network connection are required only for server mode. Website icon downloads are optional and can be disabled.