Tested with the following apps:

• Aegis (open source) Available via F-Droid and Google Play. It features a built-in QR-code reader.
• andOTP (open source) Availabe via F-Droid and Google Play. It features a built-in QR-code reader.
• FreeOTPPlus (open source) Availabe via F-droid and Google Play.
• OTP Authenticator (open source) Availabe via F-Droid and Google Play. It features a built-in QR-code reader.
• Google Authenticator (proprietary)
• KeePassXC (Linux, Windows, macOS) (open-source) Available via download, package repositories or GitHub (Keepass also provides a plugin and Keepass2Android allows to use TOTP token)
• SailOTP (SailfishOS) (open source) Available via JollaStore or Openrepos.net
• OTP Auth (proprietary) Availabe via Apple's App Store
• Authy (Twilio Authy) (proprietary) for Android and IOS. Availabe via Google Play and Apple's App Store

Tested with the following hardware devices:

• Nitrokey Pro
• Nitrokey Storage

The app is shipped and comes with the installation of Nextcloud Server. No additional steps are necessary.

The app is available through the app store. It can be installed through Nextcloud's app management UI.

Once you enable OTP with Two Factor Totp, your aplications (for example your Android app or your GNOME app) will need to login using device passwords. To manage it, know more here

• composer i
• npm ci
• npm run build or npm run dev more info