Aster Mail vs CounterMail
| Aster Mail | CounterMail | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $2.42/mo | $29/mo |
| Open source | Yes | No |
| Platforms | Android, iOS, Linux, macOS, Web, Windows | Web, Windows, macOS, Linux, Android |
| Free plan | Yes | No |
| Paid from | 2.42 /user/mo | 3.29 /user/mo |
| End-to-end encryption | Yes | Yes |
| Custom domain | Yes | Yes |
| Mailbox storage | 50 GB | 4 GB |
| Email aliases | 15 aliases | — |
| Encrypted calendar | No | — |
| Mail protocol support | bridge | — |
Both are listed in Best Secure Email Providers, Best Email Providers. On Specifiction, Aster Mail scores higher on our published basis.