Plan Less. Do more.
Thunderbird Appointment makes it easy to find a time to meet. So you can ditch the admin and streamline your day.
Instead of exchanging multiple messages to schedule a meeting, select your availability and let Appointment handle the rest. Appointment is powered by open standards and compatible with Google Calendar. You can now schedule like a pro.
An intuitive interface unlocks powerful capabilities. Select available times, send a customizable link, and track RSVPs real-time.
Coordinate with contacts using Thunderbird, Google, Microsoft, and more. With unique CalDAV support, syncing is easy and everyone is invited.
Appointment is private, open source, and integrates with third-party tools like Zoom to align with the needs of your work and personal life
Open Source
The technology powering Thunderbird Pro is freely licensed and open source, offering you transparency, security, and freedom. By subscribing you fund the development of our other open source tools which remain free-of-charge, free-of-ads, and free-of-data-harvesting
User Focused
Thunderbird Pro is part of our mission to help you communicate, collaborate, and connect freely. The Thunderbird Desktop and Mobile apps remain the core of how we offer these benefits and your subscription helps us make them even better.
Freedom Driven
Money isn't our mission, it is the means to bring freedom and productivity to as many people as possible. Freely licensed software, open source code, and open standards liberate you and remain at the heart of Thunderbird.
Get Thundermail, Appointment, and Send in one simple subscription. You'll love the confidence, ease, and security these services add to Thunderbird. Thank you for supporting freedom.
Early Bird Plan
Our initial offering, ideal for most users
$9per month,
paid annually
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30 GB of Mail Storage
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300 GB of Send Storage
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3 Email Addresses
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15 Custom Domains