LastPass vs Proton Pass

LastPass and Proton Pass now overlap on the basics—zero-knowledge vaults, sharing and emergency workflows—but their foundations are quite different. LastPass centers on a mature AES-256/PBKDF2 vault and recovery features; Proton Pass adds open-source clients, encrypted metadata and alias-based identity protection.

Where it stands out

LastPass documents AES-256 vault encryption with PBKDF2-SHA-256 at 600,000 rounds and keeps encryption and decryption on the user's device. Emergency Access lets a trusted LastPass user request the vault after a waiting period you control.

That makes LastPass straightforward for households already built around its vault-sharing and emergency-access model, without requiring a separate identity-alias service.

Trade-offs to weigh

Proton Pass uses a different privacy posture: all Proton Pass apps are open source, vault metadata is end-to-end encrypted, and the product integrates SimpleLogin-powered hide-my-email aliases.

Where it stands out

Proton Pass's free tier is unusually broad: unlimited logins and devices, passkey support and 10 email aliases. Paid plans add unlimited aliases, dark-web monitoring, a built-in 2FA authenticator and emergency access.

The alias layer is the practical differentiator. A new account can receive a unique forwarding address without exposing the user's primary email, and that alias can later be disabled if it starts attracting spam or appears in a breach.

Trade-offs to weigh

LastPass remains more familiar for users who already depend on its established vault and emergency-access workflows; Proton Pass makes more sense when account privacy and email identity separation are central requirements.