For edit, allowing multiple users in the calendar app would work as well. This is already done with the email app. How hard would it be for the calendar app?

https://protonmail.uservoice.com/forums/932842-proton-calendar/suggestions/43568148-support-multiple-proton-accounts-in-calendar-mobil

For business users, having an integrated team calendar is essential. Just like O365's Calendar, we need to share the events and a Scheduling assistant to find times when our team can meet.

It would be nice to be able to see the calendars from other people withing my "organisation" (which in my case is my family)

I ditched google services but I miss them. The calendar is a very big part of my life and business. It needs a lot of work from Proton. Proton calendar needs to be integrated between platforms and apps. I am not sure yet but I think I have to share the same calendar every time I make an update to it. The ones on IOS at least, are not getting the updates unless I re-share it.

Similar situation here: My family is still on Google, and I'm on Proton. So co-editing my calendars or those of my family is a requirement. As of now, I would have to hop between Google and Proton apps :-/

In my opinion this opens to a lot of opportunities.
Having a calendar link which opens a GUI of this specific calendar to whoever you share the link to (protonmail user or not) would be amazing !

You could be able to configure if you want to show the events or just if you're busy or not and have it password protected :)

I strongly agree that this feature would really be beneficial to be able to share calendars within couples, groups, friends, workgroups, etc. I hope protonmail considers adding it soon between proton users.

I agree with everything you said, Mickey. The only thing I will add, is that while I have fully migrated to ProtonMail and ProtonCalendar, my wife still uses Google Calendar and Gmail, and I suspect that will be the case for many ProtonCalendar users who need to share a calendar with their partners/spouses/loved ones. Or Outlook 365, etc. So please consider this as you further flesh out the shared calendar features. While it is an understandable hope, I don't think it is a reasonable expectation that all of our respective loved ones will switch to Proton simply because we have.

My Proton Calendar will remain entirely unused until full sharing (including write access) is implemented.

I fully support iterative development, and I appreciate that there is a secure calendar option for those who use their calendar solo, but I personally will have to wait until I can share a calendar with my wife to be able to use this.

Agreed. My wife & I share a calendar, which is essential.

It looks like similar suggestions have been made since July 2021 or earlier. This is a critical core feature for any family or couple looking to use Proton Calendar. I cannot start using this product or even consider a paid plan until it is possible to either create a jointly managed calendar, or at least allow full edit access to my personal calendar to another Proton user.

So, only 3rd item has not been implemented yet (edit access for an entire calendar). And yeah, it is critical for successful transitioning from Google Calendar.

Agree, critical facility. When I signed up to Protonmail I kind of took this for granted. Protonmail is fine apart from this.

Agreed, this is a must. I would not call this "sharing" as that describes simply allowing others to view your calendar. What I want is to be able to collaborate with others on a calendar where I, as the admin, can set what my users can do. For example I want to control my users' ability to View, Edit, Create, Delete, Share, etc. calendar events and tasks. It will take this for us to leave our current calendar.

For me and my family is this feature a must have.

This is a must! My calendar is practically useless unless I can share it with my wife and kids...

This is a must. A calendar without sharing is quite useless, especially for multi-user accounts.

Just found out that there is an option to subscribe to extern calendars (proton too) when you change language setting to english. (Iḿ using a dutch version). Follow-up question is: how fast do both calendars sync?

Sharing proton calendars between partners is a must to leave google etc

please make this available as soon as possible. it is something we really are in need of.