Proton Mail vs Maddy
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.
Proton Mail or Maddy: which should you choose?
- Go for Proton Mail if you'd like mail that's encrypted end to end without any setup; your mail kept in Switzerland; and a calendar and contacts alongside your mail.
- Maddy is the better pick if you want the choice of any mail app over IMAP.
| Feature | Proton Mail | Maddy |
|---|---|---|
| Overall | 4.5 | Not rated |
| Privacy | 5.0 | Not rated |
| Price | 4.0 | Not rated |
| Features | 4.5 | Not rated |
| Cheapest plan | Mail Plus $3.99 a month, yearly ($4.99 monthly) | Open source Free |
| Free plan | Yes, 1 GB, no own domain | Yes, open source |
| Storage | 15 GB | Not confirmed |
| Your own domain | ✓ 1 | ✓ Yes |
| End-to-end encryption | ✓ Built in | No |
| Company based in | Switzerland | Not confirmed |
| Your data is kept in | Switzerland | Your own server |
| Founded | 2014 | Unknown |
| Free trial | Free plan; 30-day refund on paid plans | Free to download |
| 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 | ✓ Yes |
| 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.
The key differences
- Proton Mail's cheapest plan is Mail Plus ($3.99 a month, yearly ($4.99 monthly)); Maddy's is Open source (Free).
- Proton Mail has a free plan (1 GB, no own domain); Maddy has a free plan (open source).
- Space: Proton Mail gives 15 GB of storage, Maddy storage not confirmed.
- Proton Mail keeps your mail in Switzerland, while Maddy keeps it in Your own server.
- The companies sit under different laws: Proton Mail in Switzerland, Maddy in Not confirmed.
- On encryption, Proton Mail encrypts mail end to end, whereas Maddy doesn't encrypt mail end to end.
- Mail apps: Proton Mail works in other mail apps through Proton Bridge on paid plans; Maddy works in any mail app over IMAP.
- Aliases: Proton Mail offers 10 addresses, Maddy yes.
Common questions
Can I use my own domain with Proton Mail or Maddy?
Yes, both do. Proton Mail: 1 domain on its cheapest plan that allows one. Maddy: Yes.
Where is my email stored with Proton Mail and Maddy?
Proton Mail keeps it in Switzerland. Maddy keeps it in Your own server.
Can I use Proton Mail and Maddy in Apple Mail or Outlook?
Proton Mail works in other mail apps through Proton Bridge on paid plans. Maddy works in any mail app over IMAP.
Prices and the latest news
I haven't seen either change its price since I started checking on 23 October 2026.
The latest headlines: Proton Mail news · Maddy news.
Also worth a look
Proton Mail vs Posteo · Maddy vs Posteo · Proton Mail vs mailbox.org · Maddy vs mailbox.org · Proton Mail vs Tuta · Maddy vs Tuta
Switching between them
Moving to Proton Mail · Moving from Proton Mail. Or see all my switching guides.