Building an encrypted calendar is at the top of our to-do list right now as we desperately need a solution to schedule and share calendar entries securely ourselves. However, first, we have to finish the new client to push it our of beta and update the Tutanota Android and iOS apps so that you can use your encrypted mailbox with very good speeds and many more features on all your devices. Once we are done with that, we will build the encrypted calendar.
Thank you very much for your continuous support.John supported this idea ·John commented
I think this is essential. With the Thunderbird team fully committed to it's development and it's usage increasing dramatically in recent time it would be great to see an add-on for Thunderbird that will allow for syncing of the calendar and also of your contacts. They are shipping Thunderbird with the calendar add-on Lightning as default in their next addition so it would make sense to have support for this.