ProtonMail
End-to-end encrypted email - now on iOS & Android
ProtonMail launched on March 17, 2016 with 199 votes, #124 of 4,409 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 10 years on.
What it does
ProtonMail is the world’s largest encrypted email service with over 1 million users. The ProtonMail secure email app for iPhone and iPad
Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.
Keep your conversations private with Proton Mail, an encrypted email service based in Switzerland. Gmail and and Microsoft Outlook can technically scan your inbox: These "free" email services may cost your privacy, using your messages for targeted ads, AI training, or data sharing. Proton Mail is different — funded by subscribers, not your data. Zero-access encryption means we never see your inbox, on any plan. It's free, and always will be, thanks to subscribers who upgrade to support privacy-first email for everyone. Email trackers tell senders and advertisers what you read and click on, and can follow you around the web. Proton Mail protects you from these digital spies and prevents…from proton.me
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End-to-end encrypted email, based in Switzerland2014 · protonmail.ch · ▲45Proton Mail is the world’s largest secure email service with over 100 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.





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