Runbox comparisons
Runbox is compared head-to-head with Proton Mail, Tuta Mail and Aster Mail and more: 7 head-to-heads in Secure Email Providers, each with the specs and prices we checked.
Runbox head-to-head
- Runbox vs Proton Mail
- Runbox vs Tuta Mail
- Runbox vs Aster Mail
- Runbox vs Mailfence
- Runbox vs eclipso Mail Europe
- Runbox vs mailbox
- Runbox vs Mailo
Runbox vs each of them
| # | Tool | Free plan | Paid from | End-to-end encryption | Custom domain | Mailbox storage | Email aliases | Score |
|---|---|---|---|---|---|---|---|---|
| 7 | Runbox | No | €1.66/user/mo | Yes | Yes | 2 GB | 100 aliases | 8.0 |
| 1 | Proton Mail | Yes | Yes | Yes | 15 GB | 10 aliases | 9.4 | |
| 2 | Tuta Mail | Yes | €3/user/mo | Yes | Yes | 20 GB | 15 aliases | 9.2 |
| 3 | Aster Mail | Yes | $2.42/user/mo | Yes | Yes | 50 GB | 15 aliases | 8.9 |
| 4 | Mailfence | Yes | €2.50/mo | Yes | No | 5 GB | 10 aliases | 8.6 |
| 5 | eclipso Mail Europe | Yes | Yes | No | 10 GB | 10 aliases | 8.4 | |
| 6 | mailbox | No | €1/mo | Yes | Yes | 2 GB | 3 aliases | 8.2 |
| 8 | Mailo | Yes | €1.50/user/mo | Yes | Yes | 20 GB | 100 aliases | 7.9 |
Compare Runbox with any secure email provider
These are the matchups our editors wrote up. The compare tool pairs Runbox with any other product in Secure Email Providers — and up to four at once — from the same checked specs.
Compare Runbox with any tool side by side →
Every secure email providers head-to-head →
Our full Runbox verdict, pricing and fact sheet →
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Compared by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update