
eM Client
8.5#4 in email clientsFrom $39.95 a yearFree planAndroidiOSmacOSWindows
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| Fact | eM Client | Mozilla Thunderbird |
|---|---|---|
| Calendar tools | Yes | Yes |
| Free plan | Yes | Yes |
| Offline access | Yes | Yes |
| Scheduled sending | Yes | Yes |
| Unified inbox | Yes | Yes |
It suits individuals or teams looking to manage email alongside calendars, tasks, contacts, notes, and chat. Mobile users can use the Android and iOS versions without a license.
Thunderbird suits people who want to manage multiple email accounts alongside calendar, contacts, and tasks. It is available on desktop systems and Android, with offline access and scheduled sending listed for desktop use.