I am running GrapheneOS with Proton Calendar installed. Is this also the reason why I cannot select Proton Calendar as the default calendar app?

I would like to add that I use my calendar as both a map of future events but as a log of past events. The search function for the application running on Mac OS for calendar is unbelievably slow because it must index my entire archive on the fly (not downloaded). In addition, the application won't even display calendar entries for several minutes when I select a specific day as if it downloads calendar entries in some pre-specified (not prioritizing the active date range (in my case a single day). As I try to rely on Protonmail more and more, the service becomes less and less helpful because of such issues.

It would be great to be able to make calendar changes like create/delete events locally when offline, and sync when back online.

This is similar to https://protonmail.uservoice.com/forums/945460-general-ideas/suggestions/48955238-offline-email-access

This is beyond frustrating! I try to live as much of my life as possible off WiFi and in airplane mode, and the way this makes it impossible to even reference the calendar offline makes it non-functional. I don't think I even get event notifications without being online.

Absolutely the most critical missing feature on proton calendar. Unfortunately makes it hard to switch to proton calendar without this feature

Why isn't it offline by default?

Its critical for me, especially on my phone

I have no data plan, so internet is for emergencies only. At home I use the desktop

Offline Calendar is a critical feature that is missing from the mobile apps since the beginning. All alternative calendars allow you to add/edit/delete events while offline. When are you going to deliver?

i am without cellular data or WiFi for long periods of time and i find it really frustrating that i cannot access proton calendar during those periods.

In the US we still have backcountry places where mobile access does not exist. But I still need to coordinate my activities with other travelers and add calendar events that will sync to the calendar when I get in mobile range.

This improvement is of critical importance for me, and, I think, for much of the security-conscious community. A digital calendar becomes unviable for many if loss of internet connection renders it unable to receive edits. We need an encrypted calendar system that stores all the calendar data locally, synchronising with the cloud when internet is available. This improvement would also eliminate the long delays that occur on the Android app when editing because these delays relate to interactions with the server. An improvement to that problem is also critical for me. These are FUNDAMENTALS for an effective encrypted cloud calendar.

It is a very basic and important feature that must be added in all apps (ios, macos, windows)

Internet went out because of a fire in the neighborhood. I tried to add an event (a doctor's appointment) to my calendar and it didn't work. Luckily, my phone data plan still worked so turning off wifi on my phone worked just to create the event on my calendar. The app should not need a data connection just to add an event to the calendar IMHO

I like to (re)schedule while traveling. But with limited internet connection, I had to try save an event multiple times and it became clear that Proton Calendar is just not ready for daily use yet, unfortunately.

Ofcourse we need a calendar offline!!! And the ofcourse also decrypted!!!

1) During a meeting I need to have easy and quick access to my calendar. It cannot be that for whatever reason there's no internet access, that I cannot access my calendar

2) Also I need to be able to search offline in my calendar. And the search results should come instantly (as is the case with other calendars) not being busy for 10 minutes to decrypt my calendar first!!

i travel a lot. please add functionality to add events offline

The lack of this feature makes using the Calendar app really annoying.

In order to prevent unsynced entries not noticed by the user, new calendar entries or edits made in offline mode could have a clear visual sign or notifier that lets user know they haven't been synced yet.

Please add this basic feature, thanks!

This is very important for me.
A) When I'm on the phone, my internet connection cuts out and then I can't enter appointments I've just made.
B) I often have the phone in flight mode so that I'm not distracted, e.g. when planning. Especially then it would be necessary to be able to enter appointments.
As this issue has been going on for 2 years, I'm wondering: Dear Proton team, what's the situation?
Thank you!

The fact I can't view my calendar offline on my MacBook keeps me from switching to Proton calendar. I don't want to use the iCloud calendar anymore, but need to be able to see my future plans whether I have internet or not... Please find a way to make this possible?:)