addy.io vs Firefox Relay
On privacy it's addy.io. On price it's a tie. On features it's a tie. Here's everything side by side, last checked 25 October 2026.
Which should you choose?
- addy.io is the better pick if you want your email to stay in the EU; to use your own domain, like you@yourname.co.uk; and sign-up without ID.
- Firefox Relay is the better pick if you want the lower price ($0.99 a month).
| Feature | addy.io | Firefox Relay |
|---|---|---|
| Overall | 4.0 | 2.5 |
| Privacy | 3.5 | 1.0 |
| Price | 5.0 | 5.0 |
| Features | Not rated | Not rated |
| Cheapest plan | Lite About $1 a month, yearly | Premium $0.99 a month |
| Free plan | Yes | Yes, 5 aliases |
| Storage | Forwards only | Forwards only |
| Your own domain | ✓ Yes | Own subdomain only |
| End-to-end encryption | No | No |
| Company based in | United Kingdom | United States (Mozilla) |
| Your data is kept in | EU | United States |
| Founded | 2018 | 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 | ✓ Yes | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- addy.io's cheapest plan is Lite (About $1 a month, yearly); Firefox Relay's is Premium ($0.99 a month).
- For free, addy.io gives you a free plan (), and Firefox Relay a free plan (5 aliases).
- Data location: EU for addy.io, United States for Firefox Relay.
- addy.io is based in the United Kingdom and Firefox Relay in the United States (Mozilla), so different privacy laws apply.
- addy.io lets you bring your own domain name; Firefox Relay doesn't.
Common questions
Which is more private, addy.io or Firefox Relay?
addy.io scores 3.5 out of 5 for privacy and Firefox Relay 1. addy.io gives you your email to stay in the EU and sign-up without ID.
Which is cheaper, addy.io or Firefox Relay?
Firefox Relay is cheaper. Its Premium plan is $0.99 a month, against About $1 a month, yearly for addy.io's Lite. Firefox Relay and addy.io also have a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do addy.io and Firefox Relay work with my own domain?
Only addy.io does (Yes). With Firefox Relay your address stays on its own domain.
Where do addy.io and Firefox Relay keep my email?
addy.io keeps it in the EU. Firefox Relay keeps it in the United States.
Do addy.io and Firefox Relay work in other mail apps?
addy.io only works in its own apps. Firefox Relay only works in its own apps.
Prices and the latest news
No price changes for either since 25 October 2026. I check regularly and add any change here with its date.
The latest headlines: addy.io news · Firefox Relay news.
Not sold on either? Try these
addy.io vs mailbox.org · Firefox Relay vs mailbox.org · addy.io vs Posteo · Firefox Relay vs Posteo · addy.io vs Proton Mail · Firefox Relay vs Proton Mail
Switching between them
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.