# Best Authenticator Apps for iPhone and iPad in 2026

Source: https://listme.name/best/authenticator-apps/ios

Authenticator apps differ in backups, open-source code and platform reach. This ranking weighs how codes are stored and backed up first, then open-source status, platform coverage and whether an account is needed.

## 1. Ente Auth (score 91.5)

Open source under AGPL-3.0, with end-to-end encrypted backups and sync across phones, web and desktop. Backups are optional, and offline use needs no account.

- Best for: Open-source 2FA with encrypted cross-device backup
- Free and open source | iOS, Android, Web, macOS, Linux, Windows | open source (AGPL-3.0)
- Website: https://ente.com/auth/
- Page: https://listme.name/software/ente-auth

## 2. Proton Authenticator (score 89.0)

Open-source app with end-to-end encrypted sync and backup across phones, tablets and desktops, plus an Apple Watch app. No browser extension is listed, and the company is Swiss-based.

- Best for: Encrypted sync across phones, tablets and desktops
- Free | iOS, Android, macOS, Windows, Linux | open source
- Website: https://proton.me/authenticator
- Page: https://listme.name/software/proton-authenticator

## 3. 2FAS Auth (score 87.5)

Local-first, open-source authenticator with no accounts, optional cloud or manual backup and an Apple Watch app. Its site uses both open-source and source-available wording, so check each repository's license.

- Best for: Local-first codes without an account
- Free and open source | iOS, Android, Browser extension | open source (GPL-3.0)
- Website: https://2fas.com/
- Page: https://listme.name/software/2fas-auth

## 4. Bitwarden Authenticator (score 84.5)

Free, open-source two-factor app from Bitwarden that needs no account and works on iOS and Android. It is mobile only, and its page does not describe sync or backup.

- Best for: Free mobile 2FA for Bitwarden users
- Free and open source | iOS, Android | open source (GPL-3.0)
- Website: https://bitwarden.com/products/authenticator/
- Page: https://listme.name/software/bitwarden-authenticator

## 5. Authy (score 80.0)

Free app with cloud backup and token sync across iOS and Android, from Twilio. It lists only mobile platforms and does not describe itself as open source.

- Best for: Mobile 2FA with cloud backup and phone sync
- Free | iOS, Android
- Website: https://www.authy.com/
- Page: https://listme.name/software/authy