Bitwarden vs Proton Authenticator

Bitwarden is a password manager for individuals and organizations to manage and share online information. Accounts can store passwords, notes, credit cards, and identities, and include passkey management plus a username and password generator. Bitwarden says vault data is end-to-end encrypted and only the user's master password can decrypt it. Bitwarden Send transmits text and files to anyone, including people who do not use the service. Apps include a web app, browser extensions, desktop applications for Windows, macOS, and Linux, and mobile apps for Apple and Android. The Free plan includes basic password management, unlimited devices and passwords, and sharing with another user at no charge. Premium is $1.65 a month billed annually; Families is $3.99 a month billed annually for up to six users. Teams costs $4 per user per month billed annually, and Enterprise is $6 per user per month billed annually. The company says it conducts annual source code audits and penetration tests, and lists ISO 27001, SOC 2, SOC 3, and HIPAA credentials. One platform-specific limitation: the F-Droid build lacks live-sync push notifications, so manual vault syncing is required.

Proton Authenticator generates time-based one-time codes for two-factor authentication, adding a code at login to help secure accounts. It can display codes without an internet connection, and a Proton Account is not required to use it. Signing in is optional and enables code syncing across devices. Users can import codes from Google Authenticator, 2FAS, Aegis Authenticator, Bitwarden Authenticator, Ente Auth, and LastPass Authenticator, then export their codes from the app. Backups can be stored locally or in the cloud, with end-to-end encrypted sync between devices. Proton says its servers cannot access synced data in unencrypted form; when sync is on, entries are protected with 256-bit AES-GCM. The app is open source, and its vault can be unlocked with face or fingerprint recognition. It is available for Android, iOS, Linux, macOS, and Windows; Android is also available through F-Droid. Proton Authenticator is free on all listed platforms, with no ads or tracking.