Proton Mail vs addy.io
On privacy it's Proton Mail. On price it's addy.io. On features it's Proton Mail. Here's everything side by side, last checked 25 October 2026.
Should you pick Proton Mail or addy.io?
- Proton Mail is the better pick if you want end-to-end encryption built in; 15 GB of storage; and your diary and address book in one place with your email.
- addy.io suits you best if you want a cheaper plan, at About $1 a month, yearly.
| Feature | Proton Mail | addy.io |
|---|---|---|
| Overall | 4.5 | 4.0 |
| Privacy | 5.0 | 3.5 |
| Price | 4.0 | 5.0 |
| Features | 4.5 | Not rated |
| Cheapest plan | Mail Plus $3.99 a month, yearly ($4.99 monthly) | Lite About $1 a month, yearly |
| Free plan | Yes, 1 GB, no own domain | Yes |
| Storage | 15 GB | Forwards only |
| Your own domain | ✓ 1 | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Switzerland | United Kingdom |
| Your data is kept in | Switzerland | EU |
| Founded | 2014 | 2018 |
| Free trial | Free plan; 30-day refund on paid plans | Free plan |
| Funded by advertising | No | No |
| Works in any mail app | With Proton Bridge on paid plans | No, its own apps only |
| Calendar and contacts | ✓ Yes | No |
| Aliases | 10 addresses | Unlimited aliases |
| Open-source apps | ✓ Yes | ✓ Yes |
| Sign up without ID | ✓ Yes | ✓ Yes |
| White label | No | No |
| Reader offer | Offer Proton's current deals | None |
| Last checked | 23 October 2026 | 25 October 2026 |
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The key differences
- Cheapest plans: Proton Mail Mail Plus, $3.99 a month, yearly ($4.99 monthly). addy.io Lite, About $1 a month, yearly.
- For free, Proton Mail gives you a free plan (1 GB, no own domain), and addy.io a free plan ().
- Proton Mail comes with 15 GB of storage and addy.io with no storage, as it forwards mail on.
- Proton Mail keeps your mail in Switzerland, while addy.io keeps it in the EU.
- Proton Mail is based in Switzerland and addy.io in the United Kingdom, so different privacy laws apply.
- Proton Mail encrypts mail end to end; addy.io doesn't encrypt mail end to end.
- Proton Mail works in other mail apps through Proton Bridge on paid plans, and addy.io only works in its own apps.
- For extra addresses, Proton Mail has 10 addresses and addy.io has unlimited aliases.
Questions people ask
Which is more private, Proton Mail or addy.io?
Proton Mail scores 5 out of 5 for privacy and addy.io 3.5. Proton Mail gives you end-to-end encryption built in.
Which is cheaper, Proton Mail or addy.io?
addy.io is cheaper. Its Lite plan is About $1 a month, yearly, against $3.99 a month, yearly ($4.99 monthly) for Proton Mail's Mail Plus. addy.io and Proton Mail also have a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do Proton Mail and addy.io work with my own domain?
Yes, both do. Proton Mail: 1 domain on its cheapest plan that allows one. addy.io: Yes.
Where do Proton Mail and addy.io keep my email?
Proton Mail keeps it in Switzerland. addy.io keeps it in the EU.
Do Proton Mail and addy.io work in other mail apps?
Proton Mail works in other mail apps through Proton Bridge on paid plans. addy.io only works in its own apps.
Price changes and news
I haven't seen either change its price since I started checking on 23 October 2026.
The latest headlines: Proton Mail news · addy.io news.
Alternatives to Proton Mail and addy.io
Proton Mail vs mailbox.org · addy.io vs mailbox.org · Proton Mail vs Posteo · addy.io vs Posteo · Proton Mail vs Tuta · addy.io vs Tuta
How to switch
Moving to Proton Mail · Moving from Proton Mail. Or see all my switching guides.