# Proton Mail vs Gmail: Privacy, Storage and Features

The core difference in Proton Mail vs Gmail is who pays for the inbox. Gmail costs nothing and is funded by advertising, while Proton Mail is funded by subscribers and keeps stored email encrypted so that its operator cannot read it. This guide sets the two side by side, using each provider's own pages from November 2026. Weighing your options? Read the [BillionVerify vs MyEmailVerifier](/vs/myemailverifier) comparison.

We did not test either product ourselves, and we are not affiliated with Proton or Google. Where a claim comes from one side about the other, we say so. BillionVerify is an email verification service.

**Key facts (checked November 2026):**

- Per Google's page on Gmail ads, message content plays no role in choosing ads. Your online activity does, whenever you are logged in.
- According to Google's storage help, a personal account is allotted as much as 15 GB across three Google products.
- Per Google's guide to confidential mode, an expiry date and blocked forwarding are available, yet screenshots by recipients remain possible.
- According to Proton's pricing page, an unpaid account holds a gigabyte, and the Mail Plus tier starts at $3.99 a month on annual terms.
- Per Proton's comparison page, Proton Mail offers tracker blocking and encrypted delivery between users, and Proton marks Gmail as lacking both.
- BillionVerify's account gives 20 free credits on each day you use it, with no card needed, for checking addresses before a campaign.

## Proton Mail vs Gmail at a Glance

The table lists what each side documents. Entries in the Gmail column come from Google's help pages, unless we say a claim is Proton's.

| Topic | Proton Mail | Gmail |
| --- | --- | --- |
| Cost of the basic tier | Free plan | Free with a personal account |
| Free storage | 1 GB, starting at 500 MB | 15 GB, shared with other products |
| Advertising | None, per Proton | Based on activity, not on content, per its help pages |
| Inbox encryption | Zero-access design on every plan | Not covered by the pages we read |
| Delivery between users | Locked from sender through delivery | Optional expiry and no-forward settings |
| Tracking pixels | Removed from unencrypted email | Absent from the pages we read |
| Base of the provider | Switzerland | Google |

![Proton page comparing Proton Mail and Gmail on price, features, ads, encrypted messages and tracker blocking](https://billionverify.com/blog/proton-mail-vs-gmail/proton-page-comparing-proton-mail-and-gmail-on.webp)

*Screenshot: Proton's own comparison page, which is a claim by one side about the other.*

## Does Gmail Read Your Emails?

Google answers this on its [page about Gmail ads](https://support.google.com/mail/answer/6603). Ads in Gmail are picked by an automated process that looks at your online activity while you are signed in. That page states that Gmail does not scan or read your messages to show you ads. Google adds that it does not sell personal information, and that stored Gmail content stays out of ad targeting unless you choose to share it with its other services.

So does Gmail read your emails for advertising? The help page says no. Proton's homepage describes the same landscape differently: free providers such as Gmail and Microsoft Outlook can technically scan an inbox and may use messages for ads, AI training or data sharing. That is Proton's statement about a competitor, and a reader should treat it as marketing.

![Google help page called How Gmail ads work, with sections on privacy, transparency and choice](https://billionverify.com/blog/proton-mail-vs-gmail/google-help-page-called-how-gmail-ads-work.webp)

*Screenshot: Google's help page on how Gmail ads work.*

The same page describes an exit. Open the ad settings and switch off personalization, and ads may still appear in Gmail but will not rest on the personal data tied to your account.

### What Stays Open

Does Gmail read your emails in other ways, for example to filter spam? The page we read speaks only about ads. Both accounts of the facts can hold at once. Gmail's side is a policy: content is not used for ads. Proton describes an architecture: with zero-access storage, the operator is unable to read your email at all. A policy asks for trust, and an architecture removes the need for it. Which one matters more is your decision. In Proton Mail vs Gmail, no ranking can replace that choice.

## Is Gmail Private?

Gmail offers one extra layer for sensitive messages. [Confidential mode](https://support.google.com/mail/answer/7674059) lets a sender set an expiry date, withdraw access whenever they like and switch off forwarding, copying, printing and downloading. It can also ask the recipient for an SMS passcode.

![Google help page called Send and open confidential emails, listing expiry, revocation and the SMS passcode](https://billionverify.com/blog/proton-mail-vs-gmail/google-help-page-called-send-and-open-confidential.webp)

*Screenshot: the Google guide to the sender's privacy options.*

The guide states the limit plainly. A recipient can still photograph the screen, and a person with malicious software might copy or download the content. The option therefore reduces accidental sharing, and it does not claim to be encryption from sender to reader. If someone could read your emails over a shoulder, no setting changes that.

## Security: Proton Mail Compared With Gmail

Whether Proton Mail is more secure than Gmail depends on the risk you fear. Proton's design targets one risk: an operator or an intruder reading stored email. Between two Proton addresses, delivery is encrypted from sender to reader, and email from outside is locked on arrival. Our [Proton Mail review](/blog/proton-mail-review) explains the layers and the caveats, including the subject line that stays readable.

For a Gmail recipient, Proton uses TLS in transit, and Google's systems take over after delivery. To close a message for a Gmail reader, Proton offers password-protected emails: you set a phrase, and the text stays sealed until the reader types it. Google's closest feature is the sender setting described above.

Is Proton Mail more secure than Gmail for everything? Not necessarily. Gmail is a mature product with a huge ecosystem, and safety also rests on your habits: two-step sign-in, caution with phishing and recovery options. Proton keeps no copy of your login, so you must prepare recovery yourself, as our [Proton Mail login guide](/blog/proton-mail-login) shows. That claim, limited to stored-mail privacy, comes from Proton, and we did not verify it.

## Storage and Price

Storage is where the entry plans differ most. Google's [storage help](https://support.google.com/googleone/answer/6374270) says a personal account gets up to 15 GB, shared among Drive, Gmail and Photos. When the account is full, you cannot upload files, send or receive Gmail messages, or back up photos. It adds that content may be deleted across the three products if an account stays over quota for two years.

![Google help page called Manage your storage in Drive, Gmail and Photos, with the 15 GB limit and the effects of a full account](https://billionverify.com/blog/proton-mail-vs-gmail/google-help-page-called-manage-your-storage-in.webp)

*Screenshot: the Google page on storage across its products.*

Proton's entry plan is smaller. A new user begins with 500 MB and reaches a gigabyte after a three-task checklist inside 18 days. Mail Plus gives fifteen gigabytes and Proton Unlimited gives 500 GB, at $3.99 and $9.99 a month when billed annually, and at higher prices when billed monthly. Our [Proton Mail pricing guide](/blog/proton-mail-pricing) lists every tier. We checked no Gmail storage prices, so we make no price comparison.

## Mail Programs: Gmail Sign-In or Bridge

Both providers work with desktop programs, in different ways. Gmail's help says you can add it to Outlook, Apple Mail or Thunderbird, and it recommends its own sign-in button over sharing a username and password with third-party apps. IMAP access is always on for personal accounts since January 2025, and one account can serve up to 15 programs at once.

Proton works through Bridge, a small app on your computer that decrypts email for the program. It needs a paid plan and covers Windows, macOS and Linux. POP3 is not offered. Which route fits depends on whether you want the program to talk to Gmail or to talk to Proton.

## Moving From Gmail With Proton Mail Easy Switch

Proton's [Easy Switch](https://proton.me/support/easy-switch) is the import tool inside the product. It copies email, calendars and contacts from Gmail, Yahoo, Outlook or any provider with IMAP. Proton says it works in the background, so you can keep using the computer, and that it can run imports from two outside accounts at once, with one transfer at a time per account.

Proton's homepage also describes a link for Gmail users: you connect the Gmail account, new messages keep arriving in Proton, and you can send from your Gmail address without leaving it. To start, sign in to the web app, open the settings and choose the import option. Proton Mail Easy Switch then guides you through the steps for your old provider.

Before you switch, tell your contacts and the services you use about the new address, and keep the old one for a while. Our guide to [Gmail alias hygiene](/blog/gmail-alias-system-list-hygiene-guide) explains how plus addresses and address changes affect a list.

## Choosing a Gmail Alternative

Many readers ask the question the other way round: what is a good Gmail alternative? Proton is one answer, and it presents itself as a Gmail alternative with encryption, no ads and Swiss privacy law. Others exist, with different hosting and prices. For German-hosted options, our guides cover the [mailbox.org login](/blog/mailbox-org-login) and the [Posteo login](/blog/posteo-login). For the Gmail side of that choice, see how to [sign in to Gmail in Germany](/blog/gmail-login-germany).

A useful way to decide is to list what you actually need: storage, a calendar, a custom domain, an app that fits your phone and who may read your messages. Then compare those items with each provider's pages instead of rankings.

## Emailing Gmail and Proton Mail Users? Verify Before You Send

Both providers show up on almost every list. Gmail addresses can carry plus tags, and Proton users can create hide-my-email aliases that forward to the real inbox and can be switched off, so an address that worked once can stop. Proton also strips tracking pixels from unencrypted email, so open rates for its readers say little. Verify the addresses first, and judge Proton readers by clicks and replies.

![Email inbox placement test from BillionVerify showing inbox, spam and promotions folders](https://billionverify.com/blog/proton-mail-vs-gmail/email-inbox-placement-test-from-billionverify-showing-inbox.webp)

*An [inbox placement test](/email-deliverability-test) checks where a message lands.*

BillionVerify's [email verifier](/email-verifier) works on single entries, and [bulk email verification](/bulk-email-verification) handles whole lists. What to know:

- valid and invalid results cost 1 credit each, and unknown results are free
- a free re-check is available within 24 hours
- catch-all entries get their own label and are not counted as valid
- the free allowance is 20 credits per day of use, up to 600 a month, and credits never expire
- our servers are in France (EU), and a DPA can be signed
- you can use a REST API, an MCP server or one of 25+ integrations

We make no claim about how either provider's servers answer checks. If you also collect mobile numbers, our [phone number validator](/verify-phone-numbers) shows whether a number fits its country. If a message claims to come from one of them, our [reverse email lookup](/reverse-email-lookup) shows what is known about the sender.

## FAQs

### Proton Mail vs Gmail: which is better?

Neither wins for everyone. Proton Mail suits people who want stored email that the operator cannot read, and Gmail fits those wanting a large no-cost allowance inside a large ecosystem.

### Can both services run side by side?

Yes. Proton describes a link that brings Gmail into the Proton inbox, and the import tool can copy the old mail.

### Does Gmail read your emails to show ads?

The help page says message text is never used to pick ads. Ads follow what you do while logged in, and personalization can be switched off.

### Can a Gmail user read a Proton Mail message?

Yes. A normal message is protected on the way by TLS, then Google's systems handle it. A password-protected email stays locked until the phrase is entered.

### Is confidential mode the same as full encryption?

No. It sets an expiry and blocks forwarding and downloads, but the guide warns about screenshots and photos by the recipient.

### How much storage does each provider give at no cost?

Gmail offers the bigger allowance, shared among its products, while Proton gives a single gigabyte on its entry plan.

### Is Proton Mail a good Gmail alternative?

As a Gmail alternative, it fits readers who care about stored-mail privacy and accept smaller free limits. Proton Mail Easy Switch lowers the cost of trying it.

### Is Proton Mail more secure than Gmail?

For stored-mail privacy, Proton says yes, and its design supports the claim. Gmail has other strengths, and security also depends on your own habits.

### Does Proton Mail Easy Switch copy my Gmail?

Yes. It brings over messages, appointments and contacts from Gmail and other IMAP providers, and it runs in the background while you work.

Watch: [How to Validate a Phone Number: Free Phone Number Validator](/videos/free-phone-number-validator-check-a-number-and-get-e-164)

Watch: [Bulk Email Verification: How to Verify an Email List From a File](/videos/bulk-email-verification-upload-a-list-to-billionverify)