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andOTP vs OnlyKey

Professional comparison and analysis to help you choose the right software solution for your needs.

andOTP icon
andOTP
OnlyKey icon
OnlyKey

andOTP vs OnlyKey: The Verdict

⚡ Summary:

andOTP: andOTP is a free and open-source two-factor authentication app for Android. It allows users to generate one-time passwords for added login security. It supports both time-based and counter-based algorithms and can import/export encrypted backups.

OnlyKey: OnlyKey is a physical security key that can replace passwords and two-factor authentication tokens. It encrypts and stores passwords, generates one-time passcodes, supports FIDO U2F authentication, and integrates with various password managers.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature andOTP OnlyKey
Sugggest Score — —
Category Security & Privacy Security & Privacy
Pricing Open Source Open Source

Product Overview

andOTP
andOTP

Description: andOTP is a free and open-source two-factor authentication app for Android. It allows users to generate one-time passwords for added login security. It supports both time-based and counter-based algorithms and can import/export encrypted backups.

Type: software

Pricing: Open Source

OnlyKey
OnlyKey

Description: OnlyKey is a physical security key that can replace passwords and two-factor authentication tokens. It encrypts and stores passwords, generates one-time passcodes, supports FIDO U2F authentication, and integrates with various password managers.

Type: software

Pricing: Open Source

Key Features Comparison

andOTP
andOTP Features
  • Open source and free
  • Generates time-based and counter-based one-time passwords
  • Supports common 2FA standards like HOTP, TOTP, and Steam
  • Encrypted backups can be imported and exported
  • Customizable interface with themes
  • Can be locked with a PIN code or fingerprint
  • Available in multiple languages
OnlyKey
OnlyKey Features
  • Stores passwords, credentials and keys
  • Generates one-time passcodes for 2FA
  • Supports FIDO U2F and FIDO2 for authentication
  • Open source firmware
  • Encrypted and tamper-resistant

Pros & Cons Analysis

andOTP
andOTP

Pros

  • Free and no ads
  • Open source for transparency and community contributions
  • Wide range of supported 2FA services
  • Secure encrypted backups
  • Customizable interface
  • Available on F-Droid as well as Google Play Store

Cons

  • Lacks support for some less common 2FA services
  • No cloud sync or multi-device sync
  • Setup can be complex for less tech-savvy users
OnlyKey
OnlyKey

Pros

  • Replaces multiple tokens and passwords
  • More secure than software authenticators
  • Portable and convenient to carry
  • Works across devices and operating systems

Cons

  • Costs more than software authenticators
  • Physical key can be lost or damaged
  • Limited compatibility with some services

Pricing Comparison

andOTP
andOTP
  • Open Source
OnlyKey
OnlyKey
  • Open Source

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Learn More About Each Product

andOTP
andOTP
Reviews, pricing & alternatives →
OnlyKey
OnlyKey
Reviews, pricing & alternatives →

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