4OTP

Freemium#71 of 111 in Authenticator Apps

4OTP: A focused authenticator with encrypted local storage, backups, and paid multi-device sync. Ranked #71 of 111 in Authenticator Apps by our editors (3.0/10); pricing: Free plan; best for users wanting inexpensive encrypted code history.

3.0/10★★☆☆☆Editor score

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At a glance

• Editor score
  3.0 / 10
• Pricing
  Free plan
• Best for
  Users wanting inexpensive encrypted code history
• Free plan
  Yes
• Paid from
  $36/yr
• Facts checked
  22 Sep 2026

• Where it wins

  • Encrypted local storage and backups support offline code access
  • Imports and exports codes with Google Authenticator compatibility
  • Sync covers Windows, macOS, iOS, Android and up to 50 devices

• Where it doesn't

  • Cross-device synchronization requires the paid Sync plan
  • The free apps do not include synchronization history or state reversal
  • 4OTP is not open source

Our verdict on 4OTP

4OTP is a TOTP two-factor authentication app for individuals managing verification codes across multiple devices. It generates six-digit codes that change every 30 seconds, stores 2FA data in encrypted local storage, and works offline without an account. Apps are available for Windows, macOS, iOS, and Android. Code search, renaming, pinning, automatic icons, and biometric or password access add practical organization and access controls for personal authenticator use.

The free apps cover the core workflow: TOTP code generation, encrypted local storage, encrypted backups, offline use, and code restoration. They also support importing codes from Google Authenticator and exporting them to Google Authenticator or compatible apps. This makes 4OTP suitable for users who want local protection and backup options without paying for a synchronization service. The free offering is a focused choice for one device or manually managed multi-device use.

4OTP Sync adds encrypted synchronization across supported devices for US$36 per year, with synchronization history, restoration to earlier states, encrypted backups, and support for up to 50 devices. That history and state-reversal capability gives the paid tier a clearer role than simple code sharing, particularly for users who maintain several devices. Choose 4OTP if encrypted local storage and optional cross-device history match your needs; choose another authenticator if open-source software is required or if paid synchronization is not acceptable.

Your product? Our editors can test 4OTP in depth and publish a review, labelled as paid · from $149/mo →

4OTP pricing

All 2 4OTP plans and prices →

4OTP fact sheet

Alternatives to 4OTP

• Proton AuthenticatorA mature free option for secure 2FA codes across mobile and desktop platforms.9.4
• GAGoogle AuthenticatorA free, straightforward authenticator with offline codes, sync, and QR transfers.9.2
• AuthyA focused free authenticator for mobile users who need synced TOTP tokens.9.1

See all 4OTP alternatives →

Featured on iTechGuides

4OTP is listed in our Authenticator Apps directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update