Generate two-factor authentication codes with local storage, backup and export options.

What it does

Generate two-factor authentication codes with local storage, backup and export options. The developer describes free, ad-free use without a Proton account.

What it can do

Offline use Source ↗
End-to-end encryption Source ↗
Local data storage Source ↗
Open source code Source ↗
No advertising Source ↗
Authentication codes Source ↗

Pricing

US App Store download: Free (USD), checked 2026-09-22. Open-source software; hosted services or other add-ons may have separate charges.

Sources & verification

Proton Authenticator — developer's App Store listing (US) ↗Primary source

Last verified: 22 September 2026. Features not listed here may be unverified.

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Proton Authenticator

What it does

What it can do

Pricing

Sources & verification