Offline Guard Authenticator

Guard Authenticator - Your Privacy-First 2FA Solution

Protect your digital life with Guard Authenticator, a secure, offline two-factor authentication app designed with privacy and security at its core. Generate time-based one-time passwords (TOTP) and HMAC-based one-time passwords (HOTP) for all your favorite services without compromising your privacy.

🔒 PRIVACY-FIRST DESIGN
• All data stored locally on your device only
• No internet connection required - works completely offline
• No data collection, tracking, or analytics
• No account registration needed
• Open source security practices

🛡️ SECURITY FEATURES
• Bank-grade encryption for local data storage
• Secure Room database implementation
• Support for industry-standard algorithms (SHA1, SHA256, SHA512)
• Customizable code length (6-8 digits)
• Adjustable time periods for TOTP generation

👁️ EYE PROTECTION & VISIBILITY
• Smart visibility toggle - hide/show codes with eye icon
• Protect your codes from shoulder surfing
• Individual visibility control for each account
• Secure by default - codes hidden until needed

⚡ EASY TO USE
• Clean, modern Material 3 design
• Simple account management
• Copy codes with a single tap
• Visual countdown timer for code expiration
• Support for both TOTP and HOTP standards

🔧 POWERFUL FEATURES
• Add accounts manually or via OTP URI
• Support for all major services (Google, Facebook, GitHub, etc.)
• Bulk account management
• Delete protection with confirmation dialogs
• Real-time code generation and refresh

📱 ANDROID OPTIMIZED
• Designed for Android with Jetpack Compose
• Supports all Android versions from API 24+
• Adaptive icons for modern Android devices
• Dark/Light theme support
• Optimized for phones and tablets

🌐 UNIVERSAL COMPATIBILITY
• Works with any service supporting TOTP/HOTP
• Standard RFC 6238 and RFC 4226 compliance
• Compatible with Google Authenticator backup codes
• Supports otpauth:// URI format

🎯 PERFECT FOR:
• Users who value privacy and security
• Professionals needing secure authentication
• Anyone wanting offline 2FA solution
• Users concerned about data collection
• Security-conscious individuals and businesses

✨ WHY CHOOSE GUARD AUTHENTICATOR?
• Zero permissions required
• No ads, no tracking, no data collection
• Completely offline functionality
• Professional-grade security
• Regular security updates
• Clean, intuitive interface

🔐 SUPPORTED SERVICES:
Google, Microsoft, Facebook, GitHub, Amazon, Apple, LinkedIn, Discord, Slack, Dropbox, Binance, Coinbase, and thousands more!

Download Guard Authenticator today and take control of your digital security with complete privacy protection.

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Note: This app requires manual setup with your service providers. Guard Authenticator is not affiliated with any specific service provider and works independently as a secure TOTP/HOTP code generator.

Key Features List
• Privacy-first offline 2FA authenticator
• TOTP and HOTP code generation
• Smart eye protection visibility toggle
• Bank-grade local encryption
• No permissions required
• Material 3 design
• Universal service compatibility
• Real-time code generation
• Copy codes with one tap
• Dark/Light theme support