Proton Mail vs Atomic Mail
Proton Mail wins on privacy, Proton Mail wins on price and Proton Mail wins on features. Every fact below was checked on or before 25 October 2026.
Proton Mail or Atomic Mail: which should you choose?
- Proton Mail is the better pick if you want your mailbox stored in Switzerland; to pay less: $3.99 a month, yearly ($4.99 monthly); and email at your own domain name.
| Feature | Proton Mail | Atomic Mail |
|---|---|---|
| Overall | 4.5 | 2.5 |
| Privacy | 5.0 | 2.0 |
| Price | 4.0 | 3.5 |
| Features | 4.5 | 1.5 |
| Cheapest plan | Mail Plus $3.99 a month, yearly ($4.99 monthly) | Plus From $5 a month |
| Free plan | Yes, 1 GB, no own domain | Yes, free plan |
| Storage | 15 GB | Not confirmed |
| Your own domain | ✓ 1 | No |
| End-to-end encryption | ✓ Built in | ✓ Built in |
| Company based in | Switzerland | Not confirmed |
| Your data is kept in | Switzerland | Not confirmed |
| Founded | 2014 | Unknown |
| 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 | 10 on free, 15 on Plus |
| 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.
Where they differ
- Proton Mail's cheapest plan is Mail Plus ($3.99 a month, yearly ($4.99 monthly)); Atomic Mail's is Plus (From $5 a month).
- For free, Proton Mail gives you a free plan (1 GB, no own domain), and Atomic Mail a free plan (free plan).
- Proton Mail comes with 15 GB of storage and Atomic Mail with storage not confirmed.
- Your mail is stored in Switzerland with Proton Mail, and in Not confirmed with Atomic Mail.
- Proton Mail is based in Switzerland and Atomic Mail in Not confirmed, so different privacy laws apply.
- Proton Mail lets you bring your own domain name; Atomic Mail doesn't.
- Proton Mail works in other mail apps through Proton Bridge on paid plans, and Atomic Mail only works in its own apps.
- For extra addresses, Proton Mail has 10 addresses and Atomic Mail has 10 on free, 15 on plus.
Proton Mail and Atomic Mail: your questions
Which is more private, Proton Mail or Atomic Mail?
Proton Mail scores 5 out of 5 for privacy and Atomic Mail 2. Proton Mail gives you your mailbox stored in Switzerland, apps whose code is public and an account that doesn't need your phone number or ID.
Which is cheaper, Proton Mail or Atomic Mail?
Proton Mail is cheaper. Its Mail Plus plan is $3.99 a month, yearly ($4.99 monthly), against From $5 a month for Atomic Mail's Plus. Proton Mail and Atomic Mail also have a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do Proton Mail and Atomic Mail work with my own domain?
Only Proton Mail does (1 domain on its cheapest plan that allows one). With Atomic Mail your address stays on its own domain.
Where do Proton Mail and Atomic Mail keep my email?
Proton Mail keeps it in Switzerland. Atomic Mail keeps it in Not confirmed.
Do Proton Mail and Atomic Mail work in other mail apps?
Proton Mail works in other mail apps through Proton Bridge on paid plans. Atomic Mail only works in its own apps.
Recent price changes
- 22 October 2026 Atomic Mail: $4.99 a month yearly ($5.99 monthly), when I checked
The latest headlines: Proton Mail news · Atomic Mail news.
Alternatives to Proton Mail and Atomic Mail
Proton Mail vs mailbox.org · Atomic Mail vs mailbox.org · Proton Mail vs Posteo · Atomic Mail vs Posteo · Proton Mail vs Tuta · Atomic Mail vs Tuta
Switching between them
Moving to Proton Mail · Moving from Proton Mail. Or see all my switching guides.