Side by side
Mozilla Thunderbird vs Teamup
Both stand on calendar apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source AndroidLinuxMac+1
Thunderbird combines multi-account email with calendar, contacts and task tools, with desktop offline access and message scheduling. It is free and open-source, with Android listed for mobile use.
Visit Mozilla Thunderbird Free plan AndroidAPIiPhone+4
Teamup offers a broad set of views, sharing controls, and event details for group scheduling. Check the plan limits and hosting model if your team needs more users or private-server hosting.
Visit TeamupThe facts
| Mozilla Thunderbird | Teamup | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | No |
| Runs on | Android, Linux, Mac, Windows | Android, API, iPhone, Linux, Mac, Web, Windows |
| Lowest paid plan | Free or on request | Plus: $12 a month |
| Plans published | 2 | 6 |
| Maker | Mozilla Thunderbird | TeamUp |
| Website | thunderbird.net | teamup.com |
| On calendar apps | #3 of 194 | #7 of 194 |
Mozilla Thunderbird: what it does well
- Unified inbox or separate account management
- Includes calendar, contacts and tasks
- Desktop supports offline access and scheduled sending
- Open-source and free forever
- Third-party add-ons and interface customization
What to know first
- Android is the only listed mobile platform
Teamup: what it does well
- Offers 12 calendar views and nine permission levels.
- Link sharing does not require user accounts.
- Events support custom fields, images, and attachments.
- Integrates with Slack, Microsoft Teams, Trello, and Zapier.
- Free plan includes five sub-calendars and five users.
What to know first
- Private-server hosting is unavailable.
- Calendar sync is one-way.
- Teamup does not publish its SOC reports.
- Free plan is limited to five users.
Alternatives to Mozilla Thunderbird Alternatives to Teamup The whole list