SimpleLogin vs Firefox Relay
On privacy it's SimpleLogin. On price it's Firefox Relay. On features it's a tie. Here's everything side by side, last checked 25 October 2026.
Should you pick SimpleLogin or Firefox Relay?
- SimpleLogin suits you best if you want your mailbox stored in the EU and to use your own domain, like you@yourname.co.uk.
- Choose Firefox Relay if you want to pay less: $0.99 a month.
| Feature | SimpleLogin | Firefox Relay |
|---|---|---|
| Overall | 3.5 | 2.5 |
| Privacy | 3.0 | 1.0 |
| Price | 4.0 | 5.0 |
| Features | Not rated | Not rated |
| Cheapest plan | Premium $36 a year (with Proton Pass) | Premium $0.99 a month |
| Free plan | Yes, 10 aliases | Yes, 5 aliases |
| Storage | Forwards only | Forwards only |
| Your own domain | ✓ Yes | Own subdomain only |
| End-to-end encryption | No | No |
| Company based in | Switzerland (Proton) | United States (Mozilla) |
| Your data is kept in | EU | United States |
| Founded | 2019 | 2020 |
| Free trial | Free plan | Free plan |
| Funded by advertising | No | No |
| Works in any mail app | No, its own apps only | No, its own apps only |
| Calendar and contacts | No | No |
| Aliases | Unlimited aliases | Unlimited aliases |
| Open-source apps | ✓ Yes | ✓ Yes |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
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Where they differ
- Cheapest plans: SimpleLogin Premium, $36 a year (with Proton Pass). Firefox Relay Premium, $0.99 a month.
- SimpleLogin has a free plan (10 aliases); Firefox Relay has a free plan (5 aliases).
- Your mail is stored in the EU with SimpleLogin, and in the United States with Firefox Relay.
- The companies sit under different laws: SimpleLogin in Switzerland (Proton), Firefox Relay in United States (Mozilla).
- You can use your own domain with SimpleLogin, but not with Firefox Relay.
Common questions
Is SimpleLogin more private than Firefox Relay?
SimpleLogin scores 3 out of 5 for privacy and Firefox Relay 1. SimpleLogin gives you your mailbox stored in the EU.
Is SimpleLogin cheaper than Firefox Relay?
Firefox Relay is cheaper. Its Premium plan is $0.99 a month, against $36 a year (with Proton Pass) for SimpleLogin's Premium. Firefox Relay and SimpleLogin also have a free plan. Check the renewal price before you pay, as some first-year prices go up.
Can I use my own domain with SimpleLogin or Firefox Relay?
Only SimpleLogin does (Yes). With Firefox Relay your address stays on its own domain.
Where is my email stored with SimpleLogin and Firefox Relay?
SimpleLogin keeps it in the EU. Firefox Relay keeps it in the United States.
Can I use SimpleLogin and Firefox Relay in Apple Mail or Outlook?
SimpleLogin only works in its own apps. Firefox Relay only works in its own apps.
Recent price changes
No price changes for either since 25 October 2026. I check regularly and add any change here with its date.
The latest headlines: SimpleLogin news · Firefox Relay news.
Alternatives to SimpleLogin and Firefox Relay
SimpleLogin vs mailbox.org · Firefox Relay vs mailbox.org · SimpleLogin vs Posteo · Firefox Relay vs Posteo · SimpleLogin vs Proton Mail · Firefox Relay vs Proton Mail
How to switch
Moving between any two providers works the same way. Pick your two providers for the steps.