Is the Proton free plan enough? I used 8% of it in three years

Affiliate disclosure: this post contains a Proton referral link. If you use it to take a paid Proton plan, you get $20 off and I get $20 in Proton credit. It doesn’t change the price you pay, and if this post talks you out of paying, the link earns neither of us anything.

Short answer: yes, if what you want is a personal inbox. I signed up to Proton Mail in July 2023, have never paid Proton a penny, and in September 2026 my account showed 0.04 GB used of the free 500 MB. That is 8% in three years and two months. Proton’s pricing page gives you the size of the allowance and says nothing about how fast a real account fills one, which is the number that actually decides the question. Mine answers it: on a personal inbox, storage is not what will eventually push you onto a paid plan. Three features named further down are.

What three years on the free plan actually used

The reading is 0.04 GB, taken in September 2026 against a July 2023 sign-up, which is 38 months. Run forward at the same rate:

Two honest limits on that arithmetic before you lean on it.

Proton reports storage to two decimal places, so 0.04 GB is a band, not a point. At the least favourable end of the rounding the projection is 32 years and at the most favourable it is 42. The precision is worthless and the order of magnitude is the answer: decades, not months.

It is a partial inbox, not a whole email life. I run Proton alongside Gmail rather than instead of it, moving accounts across to the Proton address a few at a time. Somebody who imports fifteen years of Gmail on day one starts somewhere entirely different, and Proton hands free users the tool to do exactly that: its Easy Switch import assistant is included on the free plan, not held back for payers.

That is the fault line, and it has a number on it. Proton caps attachments at 25 MB on every plan, free and paid alike, so twenty maximum-size attachments fill the entire free allowance. My 40 MB in three years is less than two of them. If your inbox is correspondence, 500 MB is effectively bottomless. If it is where PDFs, photos and design files go to live, one maximum-size attachment a month fills the allowance in twenty months, and the decades above tell you nothing useful.

Proton’s pricing page states the free storage twice, and the two figures differ

Read proton.me/mail/pricing (opens in new tab) on 5 September 2026 and the free plan is advertised on its card as 1 GB storage, 1 user, 1 encrypted email address. Scroll to the FAQ on the same page and it says something else: "The Proton Mail Free plan comes with 500 MB of Mail storage, which you can increase up to 1 GB by completing the Get started with Proton checklist."

Both are defensible in isolation, and the card is quoting the ceiling rather than the opening balance. What the gap means for a reader is that the number you are signing up for is half the number on the page, until you do four things. Proton lists them:

1. Discover how its privacy features protect you
2. Set up automatic forwarding from Gmail
3. Change an account login to your Proton Mail address
4. Get the Proton Mail app on your iPhone or Android device

Two of the four are migration steps. The action that doubles your storage is the action that starts filling it, which is a reasonable trade for Proton to offer and a strange one to describe as free space. I have never completed it, so I am on the base 500 MB, and the reason is the whole argument of this post: 8% in three years gave me nothing to earn the other 500 MB for.

What actually pushes you onto a paid plan

Proton publishes a full free-versus-paid comparison on the pricing page above. Read on 5 September 2026, the free plan gives you unlimited messages, folders, labels and filters, end-to-end encryption, password-protected email and unlimited hide-my-email aliases. It is not a crippled tier, which is why the storage question is the one people ask.

Three exclusions do real work, and none of them is about space:

• No IMAP or SMTP. Proton reserves email client support for paid plans, so the free inbox is Proton’s own apps and nothing else. If you want your mail inside Apple Mail, Outlook or Thunderbird, that is a paid plan, and no amount of storage discipline changes it.
• The desktop app is a 14-day trial. Listed as "14-day free trial" in the free column against "Included" for both paid tiers.
• No auto-reply, no catch-all address, no automatic forwarding out of Proton, no scheduled or snoozed sending, and no short @pm.me address. Individually small; collectively the reason a free Proton account reads as a second inbox rather than a first one.

Every one of those is a workflow feature you either need on day one or never miss, and you can tell which camp you are in before you sign up. Storage is the opposite, and that asymmetry is why it dominates the question: it is the only limit here you cannot assess in advance, so it is the only one worth measuring rather than reading off a table.

The free VPN: ten countries, and you don’t choose which

Proton Free includes a VPN, and its limit is not a data cap. It routes through ten countries and gives you no way to pick which one is active. That is what my own app does, and Proton’s comparison table agrees: the free plan’s VPN row reads "10 countries", and protonvpn.com/free-vpn (opens in new tab), read 5 September 2026, files "choose from our thousands of servers in 110+ different countries" under premium features.

For encrypting a connection on a café or hotel network, which is what I use it for, having no choice of country costs nothing. For reaching a service that cares which country you appear to be in, it is the only thing that matters, and no free tier of Proton will do it.

One thing the same table settles that catches people out: Mail Plus does not upgrade the VPN. Its VPN row also reads "10 countries". Paying for more mail storage buys more mail storage. The VPN changes on Proton Unlimited or a VPN plan, not on the cheapest paid tier.

What would make me pay, after three years of not paying

Not the 460 MB I have left. If I moved my mail off Gmail properly rather than a login at a time, the import would put a real number in the storage bar and the calculation in this post would stop applying to me. Short of that, the honest trigger would be IMAP: the day I want Proton inside a desktop mail client is the day the free plan stops being enough, and that is a decision about how I read email rather than how much of it I keep.

There is also a thing I cannot tell you, and I would rather say so than imply otherwise. Nobody has ever signed up through my Proton referral link, so I have never seen the $20 credit arrive. The $20 discount on the new customer’s side is Proton’s published term, not something I have watched happen. The Proton referral page has the full scheme and the same caveat on it.

Proton free plan FAQs

Is 500 MB of email storage enough?

For correspondence, comfortably. My own account used 0.04 GB of 500 MB between July 2023 and September 2026, which is 8% in 38 months and works out at about 1 MB a month. For attachments it is tight: Proton’s 25 MB attachment limit applies on the free plan too, so twenty maximum-size files would fill the whole allowance. The question is not how much email you get, it is whether you keep what arrives with it.

How long does Proton Mail’s free storage actually last?

On my usage, about 36 years to fill the remaining 0.46 GB, or roughly 76 years to fill 1 GB if I completed Proton’s checklist for the extra 500 MB. Proton reports storage to two decimal places, so the rounding band on the 0.04 GB reading puts the honest range at 32 to 42 years. Treat it as an order of magnitude rather than a date. It is also measured on an inbox that migrated in gradually, so importing an existing archive on day one changes the starting point completely.

Should I complete Proton’s Get started checklist to get 1 GB?

Only if you are going to migrate anyway. Two of its four steps are setting up automatic forwarding from Gmail and moving an account login to your Proton address, so the checklist doubles your storage by starting the process that consumes it. I have never completed it in three years, because 500 MB never came close to filling.

Why does Proton’s pricing page say the free plan has 1 GB?

Because 1 GB is the maximum a free account can reach, not what it opens with. The plan card on proton.me/mail/pricing lists "1 GB storage" and the FAQ lower down the same page, read on 5 September 2026, says the free plan "comes with 500 MB of Mail storage, which you can increase up to 1 GB by completing the Get started with Proton checklist". If you sign up and do nothing else, you have 500 MB.

Can you choose a country on Proton’s free VPN?

No. The free tier routes through ten countries and picks for you, which is what my own app does and what Proton’s plan comparison shows in its "10 countries" row. Proton lists choosing from its full network under premium features. Paying for Mail Plus does not change this: its VPN row reads "10 countries" as well.

You might also like

• Proton referral code: $20 off a paid plan for both of you

Sources

• My own Proton account: free plan since July 2023, never upgraded, 0.04 GB used of 0.5 GB read in September 2026. The 38-month interval, the 8%, the ~1 MB a month and the 32-to-42-year projection are arithmetic on that one reading.
• Free storage, the 1 GB ceiling, the four Get started checklist actions, the 25 MB attachment limit, the IMAP/SMTP and desktop-app exclusions and the "10 countries" VPN rows: proton.me/mail/pricing (opens in new tab), read 5 September 2026.
• Choosing a server country listed as a premium feature: protonvpn.com/free-vpn (opens in new tab), read 5 September 2026.

If the answer to the title is yes for you, sign up at proton.me and ignore this page: the free tiers need no code and no link. The Proton referral code only does anything on a paid plan, where it takes $20 off your first subscription and pays me $20 in Proton credit.

The storage reading, the sign-up date and the free VPN behaviour are from my own account, checked in September 2026. Proton’s plan contents and prices are its own and change; confirm them on proton.me before you buy.