This would be a game changer!! We absolutely need this. It would be the final thing that would make most of the people around me consider moving over to Proton as well.

Agreed - this would be a great feature for scheduling office hours.

For people in the field of health / counselling / coaching and dealing with customer from the diversity, having a secured way to propose booking of slots is key to protect citizens personal life. Proton trademark could be a way to provide confidence to user that their personal information is fully secured. This is a complement to the great function of Proton Meet to have an ecosystem where cirticial personal identifiable information is protected from being extracted by state or hackers.

I have just moved everything from Google Workspace before realising that no calendar booking apps integrate natively with Proton Calendar.
This is mission critical to my business and I might land up having to move away from Proton because this is not available.

This is a huge need and would make it seamless to switch from google.

Wish I could upvote this x1000, huge need for this!

Online scheduling is mainstream and table stakes for a lot of users. Delivering this capability is the only way to keep calendar data secure in Proton Calendar – without forgoing E2EE security. The only current alternative is to create and publish a read-only "Limited view" ICS link, which is too much compromise, and no option exists to write a scheduled event to a secure Proton Calendar. The only option is for a Proton Native and hosted scheduling service.

Please, please strongly consider prioritizing this! Life without it is very, very difficult.

I need either synchronization with my current booking tool (youcanbookme) or a similar service integrated in proton calendar. Would that be possible?

This is what is keeping my from fully switching to Proton Calendar. I need to be able to have clients book with me at various times, locations, and durations with custom confirmations.

Agree, I am facing this now. I would much rather have the feature within proton or even being able to integrate with calendly to avoid using google completely. Thank you.

The absence of this feature is a dealbreaker for me. +1

We Need a Native Scheduling and Booking Functionality for Proton Calendar (like Calendly) with an Export Booking Into Spreadsheet Function

I would like to request that the Proton Calendar team develop a native feature for automated scheduling and booking, similar to services like Calendly or the appointment feature in Google Calendar.

Problem
Currently, personal and professional users who rely on Proton's secure ecosystem must use external, often less-private, third-party services to handle appointment booking with their personal service providers, or their professional clients, partners, or customers. This forces users into a workaround, such as sharing an ICS link, which can be cumbersome and inefficient. For those who need to maintain a high level of privacy and control over their entire workflow, this process breaks the seamless experience that Proton aims to provide.

Proposed solution
Integrate a booking page function directly into Proton Calendar. This would allow users to:

Set up a public booking page where others can see your available time slots.
Create different event types, such as 15-minute intro calls, 30-minute meetings, or 60-minute consultations.

Customize availability by setting specific hours for booking.

Automatically add events to both the user's and the booker's calendars.
Send automated confirmation emails and reminders to reduce no-shows.
Incorporate privacy-centric features that are standard across Proton's other products, ensuring all aspects of the scheduling are secure and end-to-end encrypted.

Why this is important
This feature would significantly enhance the utility of Proton Calendar for business professionals, consultants, freelancers, and anyone who regularly schedules meetings with their service providers in day to day life where back and forth of scheduling is most automated with less secure calendar and email providers. It would eliminate the need to rely on external platforms, strengthening the overall privacy and security of the user's workflow. Integrating this functionality natively would further align Proton Calendar with the "all-in-one" productivity suite model and make it a more comprehensive and competitive tool in the secure communications space.

A feature like this would be a major value-add for the growing number of users who are switching to Proton to disconnect from less-private tech ecosystems.

Example Use Case
As a consultant, I would like to send a link to my clients that allows them to book a 30-minute meeting with me. The system would only show my available times, automatically update my Proton Calendar when a booking is made, and send a calendar invite to the other party. This all happens without either of us needing to use Google or other third-party services. Bonus if I can export the calendar events for record keeping/billing

Super need this!

Would there be a good workaround for now? Using a intermediary calendar that imports occupied timeslots to google calendar and then to calendly or cal.com or ....?

It's the last thing keeping me in the Google ecosystem ... well that and sharing Google docs, but Proton docs has improved a lot on that front.

This is table stakes.

This is so needed, I might need to swap to some other provider otherwise (probs google :( :( )

That could make me change service for my business. Could we get any answer about this improvement possibility?

Secure calendaring is a huge need for me as a consultant.

I'd literally pay an extra $30/yr per email in my org for this and it would be a win. Calendly charges $10/mo so you'd be saving $90/yr if the integration were half as good as Calendly is with Google Calendar.
Edit: to be clear: when I say "I'd pay an extra $30/yr per email" - I have 6 orgs, so net would be $180/yr for my user account personally, different users among those orgs would cost differently depending on overlap per that model - wasn't trying to say "do it cheaper and I'd buy it" - I'd buy it for the same cost or a bit more.

Would be super useful! As a paying customer of Proton Mail & Calendar. Just an appointment booking service.