Chuck vs Mozilla Thunderbird
| Chuck | Mozilla Thunderbird | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $5.99/mo | Free |
| Open source | No | Yes |
| Platforms | iOS | Android, Linux, macOS, Windows |
| Free plan | Yes | Yes |
| App coverage | mobile | Email, calendar, contacts, and tasks |
| Account limit | 1 accounts | — |
| Unified inbox | Yes | Yes |
| Offline access | — | Yes |
| Scheduled sending | — | Yes |
| Calendar tools | — | Yes |
Both are listed in Best Email Clients. On Inferse, Mozilla Thunderbird scores higher on our published basis.