Proton Mail vs 123 Reg
On privacy it's Proton Mail. On price it's Proton Mail. On features it's Proton Mail. Here's everything side by side, last checked 25 October 2026.
Which should you choose?
- Proton Mail is the better pick if you want end-to-end encryption built in; your email to stay in Switzerland; and to pay less: $3.99 a month, yearly ($4.99 monthly).
- 123 Reg suits you best if you want the choice of any mail app over IMAP and a company with a longer track record (since 2000).
| Feature | Proton Mail | 123 Reg |
|---|---|---|
| Overall | 4.5 | 2.0 |
| Privacy | 5.0 | 0.5 |
| Price | 4.0 | 3.5 |
| Features | 4.5 | 3.5 |
| Cheapest plan | Mail Plus $3.99 a month, yearly ($4.99 monthly) | 10 GB mailbox £1.99 a mailbox a month for the first year, then £47.88 a year |
| 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 (GoDaddy) |
| Your data is kept in | Switzerland | Not confirmed |
| Founded | 2014 | 2000 |
| 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 | No |
| Aliases | 10 addresses | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | ✓ Yes | No |
| White label | No | Unknown |
| 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 123 Reg differ
- Proton Mail's cheapest plan is Mail Plus ($3.99 a month, yearly ($4.99 monthly)); 123 Reg's is 10 GB mailbox (£1.99 a mailbox a month for the first year, then £47.88 a year).
- For free, Proton Mail gives you a free plan (1 GB, no own domain), and 123 Reg no free plan.
- Proton Mail comes with 15 GB of storage and 123 Reg with 10 GB of storage.
- Data location: Switzerland for Proton Mail, Not confirmed for 123 Reg.
- Proton Mail is based in Switzerland and 123 Reg in the United Kingdom (GoDaddy), so different privacy laws apply.
- Proton Mail encrypts mail end to end; 123 Reg doesn't encrypt mail end to end.
- Proton Mail works in other mail apps through Proton Bridge on paid plans, and 123 Reg works in any mail app over IMAP.
- For extra addresses, Proton Mail has 10 addresses and 123 Reg has yes.
Common questions
Which is more private, Proton Mail or 123 Reg?
Proton Mail scores 5 out of 5 for privacy and 123 Reg 0.5. Proton Mail gives you end-to-end encryption built in, your email to stay in Switzerland and open-source apps.
Which is cheaper, Proton Mail or 123 Reg?
Proton Mail is cheaper. Its Mail Plus plan is $3.99 a month, yearly ($4.99 monthly), against £1.99 a mailbox a month for the first year, then £47.88 a year for 123 Reg's 10 GB mailbox. Proton Mail also has a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do Proton Mail and 123 Reg work with my own domain?
Yes, both do. Proton Mail: 1 domain on its cheapest plan that allows one. 123 Reg: Yes.
Where do Proton Mail and 123 Reg keep my email?
Proton Mail keeps it in Switzerland. 123 Reg keeps it in Not confirmed.
Do Proton Mail and 123 Reg work in other mail apps?
Proton Mail works in other mail apps through Proton Bridge on paid plans. 123 Reg works in any mail app over IMAP.
Price changes and news
- 22 October 2026 123 Reg: £1.19 a month, when I checked
The latest headlines: Proton Mail news · 123 Reg news.
Alternatives to Proton Mail and 123 Reg
Proton Mail vs mailbox.org · 123 Reg vs mailbox.org · Proton Mail vs Posteo · 123 Reg vs Posteo · Proton Mail vs Tuta · 123 Reg vs Tuta
Switching between them
Moving to Proton Mail · Moving from Proton Mail. Or see all my switching guides.