StartMail provides private email with encryption and customizable aliases, including disposable addresses and one-click encrypted sending.
Proton Mail
Use Proton Mail’s encrypted email app on iOS to read and send messages from a private inbox.
About Proton Mail
Proton Mail is an iOS app from Proton AG for reading, sending and organizing encrypted email. Users can create a @proton.me or @protonmail.com address, exchange encrypted messages and attachments, and manage mail with conversations, folders, labels and swipe gestures.
Messages are stored on Proton Mail servers with end-to-end encryption and are encrypted on the device, which the provider describes as leaving it without technical access to content. The app also supports multiple accounts, password-protected messages, notifications, automatic categories and dark mode.
Key features
- Create a @proton.me or @protonmail.com address
- Send and receive encrypted emails and attachments
- Switch between multiple Proton Mail accounts
- Organize inbox with folders, labels and swipe gestures
- Send password-protected emails to anyone
- Receive new email notifications
Best for: People who want to read and manage encrypted email on iPhone or iPad.
Good for
- Messages encrypted on device with provider stating it lacks decryption access
- Uses open-source AES, RSA and OpenPGP implementations
- Includes phishing, spam and tracking protection
Proton Mail at a glance
- Category
- Privacy & Security › Private Email
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- iOS, Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Proton Mail alternatives
Tools and sites you could use instead, ranked by how closely they match.
Mailfence provides encrypted email with free access, interoperability, and privacy protections under Belgian law.
AdGuard Mail provides email forwarding with aliases and temporary addresses to help keep a personal email address private.
SimpleLogin offers open-source email aliases for receiving and sending messages anonymously, with protection against spam and phishing.
Get temporary email addresses with Zemail to receive messages without registration and keep a personal inbox private.
33mail creates private email aliases that forward messages to an existing inbox and lets users deactivate addresses or reply anonymously.
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Proton Mail FAQ
Can I email people who do not use Proton Mail?
Yes, the app can send password-protected emails to anyone.
Can I use more than one account?
Yes, the app supports switching between multiple Proton Mail accounts.
How are messages stored and transmitted?
The provider states messages are stored with end-to-end encryption and transmitted securely between Proton servers and user devices.
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