AtOnline Auth is a secure two-factor authentication (2FA) app that helps protect your online accounts with time-based one-time passwords (TOTP), HMAC-based one-time passwords (HOTP), and OCRA challenge-response authentication.
KEY FEATURES:
Secure Token Management
• Store and manage all your 2FA tokens in one place
• Add tokens easily by scanning QR codes or entering details manually
• Support for TOTP, HOTP, and OCRA (RFC 6287) authentication methods
• Configurable token settings (6 or 8 digits, various time periods)
OCRA Challenge-Response
• Full RFC 6287 OCRA support for enterprise authentication
• Scan challenge QR codes to auto-fill and generate responses
• Support for PIN, session data, counter, and timestamp options
• Compatible with banking and high-security applications
Strong Security
• Master password protection with industry-standard encryption
• Biometric authentication (fingerprint) for quick access
• All sensitive data encrypted locally on your device
• No cloud storage - your secrets never leave your device
Smart Organization with Tags
• Create custom tags to organize tokens by category (work, personal, banking, crypto)
• Filter and find tokens instantly using tags
• Manage dozens of accounts without losing track
• Quick search across all your tokens
Backup & Recovery
• Secure encrypted backup export
• Password-protected import/restore functionality
• Never lose access to your accounts
SUPPORTED ALGORITHMS:
• SHA1, SHA256, and SHA512 hash algorithms
• Compatible with all standard TOTP/HOTP/OCRA authenticator systems
AtOnline Auth works offline and keeps your authentication codes secure and accessible whenever you need them.
Latest Version
Varies with deviceRequires Android
Category
Free Tools AppContent Rating
Everyone
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Flag as inappropriateLast updated on Jan 2, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!