AtOnline Auth

1+
Downloads
Content rating
Everyone
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About this app

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.
Updated on
Jan 2, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

Initial release

App support

About the developer
カルプレス研究所株式会社
support@klb.jp
3-15-22-301, NAKAOCHIAI SHINJUKU-KU, 東京都 161-0032 Japan
+81 80-4175-4242

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