Proton Mail vs 20i
On privacy it's Proton Mail. On price it's Proton Mail. On features it's a tie. Here's everything side by side, last checked 25 October 2026.
Should you pick Proton Mail or 20i?
- Go for Proton Mail if you'd like end-to-end encryption built in; a free plan before you pay anything; and more room (15 GB, against 10 GB).
- 20i is the better pick if you want freedom to use the mail app you already like.
| Feature | Proton Mail | 20i |
|---|---|---|
| Overall | 4.5 | Not rated |
| Privacy | 5.0 | 2.5 |
| Price | 4.0 | Not rated |
| Features | 4.5 | 4.5 |
| Cheapest plan | Mail Plus $3.99 a month, yearly ($4.99 monthly) | Email hosting Not confirmed |
| Free plan | Yes, 1 GB, no own domain | No |
| Storage | 15 GB | 10 GB |
| Your own domain | ✓ 1 | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Switzerland | United Kingdom |
| Your data is kept in | Switzerland | United Kingdom |
| Founded | 2014 | Unknown |
| Free trial | Free plan; 30-day refund on paid plans | Unknown |
| Funded by advertising | No | No |
| Works in any mail app | With Proton Bridge on paid plans | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | 10 addresses | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | ✓ Yes | No |
| White label | No | ✓ Yes |
| Reader offer | Offer Proton's current deals | None |
| Last checked | 23 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
How Proton Mail and 20i differ
- On price: Proton Mail Mail Plus at $3.99 a month, yearly ($4.99 monthly), against 20i Email hosting at Not confirmed.
- Proton Mail has a free plan (1 GB, no own domain); 20i has no free plan.
- Space: Proton Mail gives 15 GB of storage, 20i 10 GB of storage.
- Your mail is stored in Switzerland with Proton Mail, and in the United Kingdom with 20i.
- The companies sit under different laws: Proton Mail in Switzerland, 20i in United Kingdom.
- On encryption, Proton Mail encrypts mail end to end, whereas 20i doesn't encrypt mail end to end.
- Mail apps: Proton Mail works in other mail apps through Proton Bridge on paid plans; 20i works in any mail app over IMAP.
- Aliases: Proton Mail offers 10 addresses, 20i yes.
Common questions
Is Proton Mail more private than 20i?
Proton Mail scores 5 out of 5 for privacy and 20i 2.5. Proton Mail gives you end-to-end encryption built in, apps whose code is public and an account that doesn't need your phone number or ID.
Can I use my own domain with Proton Mail or 20i?
Yes, both do. Proton Mail: 1 domain on its cheapest plan that allows one. 20i: Yes.
Where is my email stored with Proton Mail and 20i?
Proton Mail keeps it in Switzerland. 20i keeps it in the United Kingdom.
Can I use Proton Mail and 20i in Apple Mail or Outlook?
Proton Mail works in other mail apps through Proton Bridge on paid plans. 20i works in any mail app over IMAP.
Prices and the latest news
Neither price has changed since my first check on 23 October 2026.
The latest headlines: Proton Mail news · 20i news.
Not sold on either? Try these
Proton Mail vs mailbox.org · 20i vs mailbox.org · Proton Mail vs Posteo · 20i vs Posteo · Proton Mail vs Tuta · 20i vs Tuta
Switching between them
Moving to Proton Mail · Moving from Proton Mail. Or see all my switching guides.