# Proton Mail - Encrypted Email — Fast, private, secure inbox

> Secure, private, and encrypted email service with advanced security features. (iPhone/iPad app by Proton AG.)

- Source: https://appshunter.io/ios/app/proton-mail-encrypted-email/id979659905 (this page in markdown: same URL + `.md`)
- Developer: [Proton AG](https://appshunter.io/developer/979659484)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Rating: 4.80/5 from 46,855 App Store ratings · 1,560 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.2 · 272 MB
- Languages: American English, Belarusian, Catalan, Czech, Danish, Dutch, Finnish, French (France), Georgian, German (Germany) and 19 more
- Released: 2016-03-17
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/proton-mail-encrypted-email/id979659905/reviews.md

## What is Proton Mail?

Keep your conversations private. Proton Mail is encrypted email from Switzerland. Used by millions worldwide, our all-new email app protects your communications and has everything you need to easily manage your inbox.

The Wall Street Journal says:
“Proton Mail offers encrypted email, which makes it virtually impossible for anyone to read it except the sender and the recipient.”

With the all-new Proton Mail app, you can:
• Create a @proton.me or @protonmail.com email address 
• Send and receive encrypted emails and attachments with ease
• Switch between multiple Proton Mail accounts
• Easily manage your email with conversations
• Keep your inbox tidy and clean with folders, labels and simple swipe-gestures
• Receive new email notifications
• Send Password-protected Emails to anyone
• Keep important emails in focus with automatic, private categories
• Enjoy your inbox in dark mode

Why use Proton Mail?
• Easy to use — Our all-new app has been redesigned to make it easier to read, organize, and write your emails.
• Your inbox is yours — We don’t spy on your communications to show you targeted ads. Your inbox, your rules.
• Rigorous encryption — Your entire inbox is secured, on all your devices. No one can read your emails but you. Proton is privacy, guaranteed by end-to-end and zero-access encryption.
• Unmatched protection — We offer strong phishing, spam, and spying/tracking protection for all your communications.

Industry Leading Security Features
Messages are stored on Proton Mail servers using end-to-end encryption at all times and are transmitted securely between Proton servers and user devices. This largely eliminates the risk of message interception.

Zero Access to Your Email Content
Proton Mail's zero access architecture means that your data is encrypted in a way that makes it inaccessible to us. Data is encrypted on the client side using an encryption key that Proton does not have access to. This means we don't have the technical ability to decrypt your messages.

Open-Source Cryptography
Proton Mail's open-source software has been thoroughly vetted by security experts from around the world to ensure the highest levels of protection. Proton Mail only uses secure implementations of AES, RSA, along with OpenPGP, while all of the cryptographic libraries used are open source. By using open-source libraries, Proton Mail can guarantee that the encryption algorithms used do not have clandestinely built-in back doors.

Proton Mail in the press:
“Proton Mail is a Gmail-like email system which uses end-to-end encryption, making it impossible for outside parties to monitor.” Forbes

“A new email service being developed by a group who met at MIT and CERN promises to bring secure, encrypted email to the masses and keep sensitive information away from prying eyes.” Huffington Post

Follow Proton on social media for all the latest news and offers:
Facebook: /proton
Twitter: @protonprivacy
Reddit: /protonmail
Instagram: /protonprivacy

Our open-source code base: https://github.com/ProtonMail

EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula

## Key features

- End-to-end encryption
- Password-protected emails
- Multiple account support
- Inbox organization (folders, labels)
- Dark mode
- Phishing and spam protection

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Unlimited 1 year | $119.00 | per year |
| Mail Plus 12 months | $47.90 | per year |
| Unlimited 1 month | $14.99 | per month |
| Mail Plus 1 month | $5.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Proton Unlimited | $149.99 | one-time |
| Mail Plus (1 year) | $59.99 | one-time |


## Chart rankings

- #53 in Top Free · Productivity (US App Store)
- #81 in Top Grossing · Productivity (US App Store)

## What do users think of Proton Mail?

Overall sentiment: positive

**Pros**

- 🚀 Smooth performance
- 🔒 Excellent security and privacy
- 👍 Clean and intuitive interface
- 💡 Expanding ecosystem of Proton services

**Cons**

- 🐛 Occasional crashes and bugs
- ⏱️ Slow email loading times
- 📝 Lacking advanced email management features
- 💰 Expensive paid plans

**Commonly reported bugs**

- Login issues and lost email data
- Unreliable push notifications
- Inconsistent user experience between app and web

**Most requested features**

- Conversation threading and email previews
- Customizable notification sounds
- Offline email access
- Improved syncing across devices

## Recent user reviews (10 of 1,560)

All indexed reviews: https://appshunter.io/ios/app/proton-mail-encrypted-email/id979659905/reviews.md

### 1/5 — Broken

*2026-08-25, version 7.11.4*

App will not run on iOS. Also, in what decade will we be getting a true dark mode for the web browser version?

### 3/5 — Overheating My Phone

*2026-08-24, version 7.11.3*

Look, I love the service, but the last update has brought back some behavior that just chews through my battery and overheats my phone.

It was there earlier this year, then it went away, but now it’s back. I can be using apps that melt my phone, you guys.

### 5/5 — Proton mail

*2026-08-24, version 7.11.3*

Excellent option for those of us looking for security, genuine concern for users’ needs, and a friendly, practical, and professional design.

### 3/5 — Unread was fine where it was

*2026-08-22, version 7.11.3*

I am unfortunately not a fan of this new UI update, and I instantly opted to keep my inbox as is. Even so, there are minor but annoying permanent changes that I don’t like. Offering these as granular/customizable options would’ve been much better. It’s a small thing, but please implement top/bottom
options for the Unread button placement. Not everyone uses their phone the same way and, for me, the new placement achieves the opposite of its intended effect.

### 5/5 — Love Love Love Proton

*2026-08-22, version 7.11.3*

Easily the one company I hold the highest level of trust with. Been using their VPN for years (and I’m not one to pay for subscriptions). Mail has been something I’ve used much less but always for the highly sensitive things. Great app, great services, amazing company. Until Switzerland agrees to bend over on their privacy laws, Proton is the cats pajamas for all of your needs.

**update: forgot to mention that the ability to change the app icon to something more inconspicuous is a great feature. But the name should either change with it to match the photo, just be changed to “Proton” (or something), or allow users to create a custom name. Otherwise a calculator app with the name “proton mail” draws more attention than the regular icon.

### 4/5 — Great mail, Two Small Improvements

*2026-08-21, version 7.11.3*

I’ve been a longtime Proton Mail user and overall I really like it. 
there are two small improvements I think would make the experience noticeably better.
1. Add a discreet mail icon
The “Discreet app icon” feature is a great idea, but the current alternatives are Weather, Notes, and Calculator. It would be much more useful to have an actual discreet mail icon as an option, similar to the Apple Mail icon. I’d prefer to keep the app looking like a mail app rather than disguising it as a completely different type of app. Apple mail icon would be perfect disguise.
2. Make “Sync with system” the default on the web version
When opening Proton Mail in a new/private browser tab for the first time, it defaults to Light mode even when the computer is already using Dark mode. You can manually switch it to “Auto-Sync with system,” but I think that should simply be the default behavior.
This is especially noticeable when I log in through a private window at night while my computer is already in Dark mode. It’s a small detail, but having Proton auto follow the system appearance would make the experience feel much more seamless.
These are both relatively small changes, but they would make an already excellent service noticeably better.

### 5/5 — A simplified alternative

*2026-08-21, version 7.11.3*

Trying this out as an alternative to my other cluttered email. So far, so good.

### 2/5 — Leave out the AI

*2026-08-21, version 7.11.3*

Don’t you hate when you open your email and have to click click click clear a bunch of dickover messages informing you that AI features have been enabled without consent? I do! I hate it! Leave that google nonsense at the curb or I’ll find a new email service to pay for.

### 5/5 — Proton mail

*2026-08-21, version 7.11.2*

Excellent option for those of us looking for security, genuine concern for users’ needs, and a friendly, practical, and professional design.

### 4/5 — After a year and updates

*2026-08-20, version 7.11.2*

I was upset because the app use to send some data that was tracking your connection but not anymore. After a year on the basic plan it was a good investment. I have seen the changes to the app and it has not sent any data that exposes the connection. That is without a vpn so it may have but not recently. I have one email address left to create on my tier and decided to re-review it the app again. I’m having a better experience now and it is getting better. Love the pure email experience with no account sync even if it asks to link with my google account. If you don’t want to use or invest in the apple, google, and email sync then you should have this app. With games services linking more and more this app will help it stop. Just be aware you lose your account you lose the email but there are enough recovery options to avoid it. Thanks for removing the random telemetry data from the app so it can be used on my mac. Now I’m happy with this next step is replacing my social media email with a private paid version.

## Frequently asked questions about Proton Mail

### What is Proton Mail?

Proton Mail is an encrypted email service developed in Switzerland that focuses on user privacy and security. It utilizes end-to-end and zero-access encryption to ensure that only the sender and recipient can read your messages. Millions of users worldwide trust it to protect their communications.

### How does Proton Mail protect my emails?

Proton Mail employs rigorous encryption methods, including end-to-end and zero-access encryption, meaning even Proton Mail cannot access the content of your emails. It also offers strong protection against phishing, spam, and tracking, ensuring your inbox remains tidy and secure.

### Is Proton Mail free to use?

Yes, Proton Mail offers a free plan that allows everyone to experience private email. For users who need more storage, custom email addresses, or additional features, paid plans are available to support the service and its mission.

### What devices is Proton Mail compatible with?

Proton Mail is accessible through its web interface and dedicated mobile applications. The description mentions an 'all-new email app' for mobile devices, implying compatibility with major mobile operating systems like iOS and Android.

### Can I send encrypted emails to non-Proton Mail users?

Yes, you can send password-protected emails to anyone, regardless of whether they use Proton Mail. This feature allows you to securely share sensitive information with individuals outside of the Proton Mail ecosystem.

## Version history (last 5 releases)

### 7.11.4 — 2026-08-24

Multiple fixes and performance improvements

### 7.11.3 — 2026-08-21

Multiple fixes and performance improvements

### 7.11.2 — 2026-08-20

Multiple fixes and performance improvements

### 7.11.1 — 2026-08-17

Multiple fixes and performance improvements

### 7.11.0 — 2026-08-13

Multiple fixes and performance improvements

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## More apps by Proton AG

- [Proton VPN: Fast & Secure](https://appshunter.io/ios/app/proton-vpn-fast-and-secure/id1437005085)
- [SimpleLogin - Email alias](https://appshunter.io/ios/app/simplelogin-email-alias/id1494359858)
- [Proton Drive: Cloud Storage](https://appshunter.io/ios/app/proton-drive-cloud-storage/id1509667851)
- [Proton Calendar: Secure Events](https://appshunter.io/ios/app/proton-calendar-secure-events/id1514709943)
- [Proton Pass - Password Manager](https://appshunter.io/ios/app/proton-pass-password-manager/id6443490629)

All apps by Proton AG: https://appshunter.io/developer/979659484

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*