Proton Authenticator vs Seafarers Tax Calculator
Side-by-side comparison for Android — updated April 2026
About Proton Authenticator
Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass. Proton Authenticator is open-source, end-to-end encrypted, and backed ...
About Seafarers Tax Calculator
Know exactly where you stand with your Seafarers Earnings Deduction (SED). Track your qualifying days, days in hand, and fail date in real time — no spreadsheets, no guesswork. Built by an offshore worker, for offshore workers. --- WHY THIS APP EXISTS Most seafarers don’t realise how close t...
Verdict
Proton Authenticator has a rating of 4.8. Seafarers Tax Calculator has 500+ downloads. Both apps are available for free download on Google Play Store. Try both to see which works best for you.