OTP vs TOTP Authenticator

OTP-Auth is a beautifully designed two-factor authentication (2FA) app that generates one-time passwords on your iPhone. Supporting both TOTP and HOTP protocols, it adds an essential layer of security to all your online accounts. KEY FEATURES: - Generate TOTP & HOTP verification codes offline - Scan QR codes or add accounts manually - Tap to reveal code and copy to clipboard - Face ID & Touch ID biometric app lock - Dark Mode with system, light, and dark themes - iCloud sync and backup across devices - Export & import data with AES-256-GCM encryption - Import from Google Authenticator, 2FAS, and Aegis - 60+ branded service icons with auto-matching - Account grouping with drag-and-drop reorder - Search and sort by name, type, or custom order - Modern card-style UI with smooth animations SECURITY FIRST: Your authentication secrets never leave your device or your iCloud. Encrypted exports use AES-256-GCM. Biometric authentication keeps your codes private even if someone has your phone. IMPORT & EXPORT: Easily migrate from other authenticator apps. OTP-Auth supports encrypted JSON, plain text URI, 2FAS backup, Aegis vault, and Google Authenticator QR migration. Export your data securely with password-protected encryption. ORGANIZE YOUR WAY: Group accounts into custom folders, drag and drop to reorder, and use the built-in search to find any account instantly. Hide codes by default and reveal with a tap. PERMISSIONS: Camera access is required for scanning QR codes to add accounts. Learn more about OTP verification: https://www.wikiwand.com/en/One-time_password

Make your important accounts safer — and simpler. This app is a two-factor authentication app dedicated exclusively to TOTP (Time-based One-Time Passwords). It combines fast, easy everyday authentication with strong privacy by keeping sensitive information protected entirely on your device. It does not rely on external network communication, and secret keys are securely stored in the Keychain. From displaying authentication codes to account migration, every aspect is designed with security as the highest priority. Key Features Security-first design - All data is managed entirely on your device - Secret keys are stored securely in the Keychain - Supports biometric authentication at launch - Automatically masks authentication codes during screenshots, screen recordings, external output, and in the App Switcher - Designed not to connect external server - Disables Universal Clipboard to prevent unintended sharing Easy-to-use TOTP features - Supports TOTP - Supports SHA-1 / SHA-256 / SHA-512 - Supports 6-digit / 8-digit codes - Supports 30-second / 60-second intervals - Generates codes using your device’s time - Copy authentication codes to the clipboard with a single tap - Supports automatic timeout - The default timeout is 30 seconds - Timeout duration can be customized Easy account migration - Import / export accounts via QR codes - Supports standard otpauth:// - Supports Google Authenticator’s proprietary otpauth-migration:// Modern, easy-to-read UI - Intuitive and refined interface - Optimized for iPhone - Designed for readability and ease of use as an authentication app for everyday use Multilingual support - Localized in a wide range of languages, with English as the default language Recommended for - Anyone looking for a security-focused two-factor authentication app - Those who prefer fully on-device management instead of cloud sync - Those who want smooth migration via QR codes - Those who use both iPhone and iPad