A different app or just 2 tabs like a browers in the Mail app.
As longs as you can see an e-mail parallel to you calendar.
If I make a calendar appointment and I need to put in info from an e-mail I now have to switch between them each time.. Not very handy or user friendly

I agree with the sentiment of this request 100%, although I'm not sure about the specifics like what "different apps" entails.

On the other hand, I agree 10^100% with the implementation recommended by @frealek (does @ mentioning even work here?), from start to finish!

I don't want to shard this feature idea since it date backs to early '24 and has accrued so many votes, but I feel a restatement of this feature with the title "Launch Desktop Mail & Calendar in separate windows" or something to that effect would be helpful. I'm no expert on Electron, but seems this is done with the `BrowserWindow` class:

https://www.electronjs.org/docs/latest/api/browser-window

That class is only being used once with a call to `createBrowserWindow()` during startup, but seems plausible that a similar call could be done within the `openMail()` and `openCalendar()` functions, with a bit of indirection to sort out which is currently running, focused, etc:

https://github.com/ProtonMail/WebClients/blob/190983a5b1b2fef5ac6302986675b2ffe00e25f2/applications/inbox-desktop/src/utils/view/viewManagement.ts#L357-L400

The locking stuff frealek mentions seems like it should go hand-in-hand with that approach, and w/o much fuss, as far as I can tell.

A separate feature idea/request, highlighting that option to use a separate window + locks (as opposed to different apps), seems like a much better way to garner support from other users, with a clear trajectory for devs to follow if it does indeed get that support.

Does someone want to open it or should I?

I agree that the ability to have Mail and Calendar open in two separate windows would be a welcome feature! Be it two standalone apps or one app with multiple windows.

Also, I would like to be able to make at least the Calendar window way smaller, so I can put it on the side of my task manager in Day view.

Being able to have the email and calendar open at the same time side-by-side or in different windows would be very important to me. I often have to add new events in my calendar based on emails I've received. Having to go back and forth between the two is very annoying and time consuming.

I don't use the calendar (except for replying to meeting appointment messages). Would appreciate if this feedback form was split between mail & calendar features.

Like most of the other users requesting this, the issue is about different windows, not different apps. And using the app client for mails and the browser window for calendar is far from being good UX.

There is a seemingly easy solution : currently the Proton App doesn't allow being started more than once, probably because it uses a single LOCK for the main app.

Allowing the Proton App to be started 2 times (or once per subapp) would be perfect : the app just needs to use a different locks per sub-app. For example, one for Mail and one for Calendar... Then if the app is started and the lock for Mail is taken, it checks if another lock is available, like Calendar, if it is available the app starts as Calendar and takes the lock.

Inside the app, if the user tries to switch sub-apps (Mail <-> Calendar), it's just a matter of checking if the target sub-app lock is taken or available, and act accordingly. It could even detect that it is already running in a different app instance and switch to it.

This way works on all the cases, and would only impact performance (the same app running multiple times), and adapt to whatever the user wants to use (single app, multiple apps...)

Please consider improving this part of the app !
if the app detects that it is already running once

Title says "different apps" but description talks about an icon/shortcut for the same app. Either way, what's critical for me is to have calendar and mail in separate windows.

I've recently switched to Proton Calendar from iCloud, having used Proton Mail for years and I've already had to go back and forth between calendar and emails. Like having a popup for a new event but having to recheck the email on some details. I have to close the popup and switching back and forth doesn't perfectly preserve my view in either app, not to mention the lag during load.

I know that for one day I can see calendar events to the side, I'm just very used to manage calendar with the weekly view but will try that in the meantime.

I get this idea, but personally I would prefer having both options (separate apps and both in one).

There is so much lost time in being organized, having to switch between apps makes the vision narrow. I have at least 2 screens on my workstations and viewing messaging and calendar at the same time is the best thing you can have.

Assuming this is an ask for desktop/mac users. My Current workaround is to open the calendar via web https://account.proton.me/apps and use the mail app. but I agree it would be great to have the app separated same as mobile.

Separating the mail and calendar so I can see both on my screen at the same time is the requirement. How it is done is less important.

That said ultimately having off-line apps on my PC and my phone is the real goal. Recently whilst travelling in areas with no coverage and very patchy wi-fi I could not access my calendar to check appointment dates and times. Vary inconvenient

I would like a separate calendar window, regardless if it's a separate app or a separate window.

I usually look at the calendar while reading or writing mail. Or add calendar entries based on information I've received in a mail I have open. So to be able view them both at the same time next to each other is an important feature for me.

"Um… Proton has both Proton Mail and Proton Calendar apps avaliable.
https://protonapps.com/&quot;

@Privacy101 [Volunteer Mod]
Um, no it's the same app listed twice (ProtonMail-desktop.dmg)... Please check before replying.

Um… Proton has both Proton Mail and Proton Calendar apps avaliable.
https://protonapps.com/

It is absolutely critical to separate these two apps on macOS! Right now, having them combined makes notifications unworkable: macOS only allows one style of notification per app — banners (which disappear and are easy to miss) or alerts (which stay on screen and must be cleared manually). Banners are fine for email but terrible for calendar events. I'm currently using these and I'm missing everything-it's like I don't even have a calendar at all. Alerts are essential for calendar events but very overwhelming for email. This is a deal breaker and makes the combined app impractical. Please fix this! Also in a multi-monitor world combined apps are just inconvenient. I often want to reference my calendar when composing an email. Clicking back and forth between the calendar and email tabs is not ideal.

Or if we could at least have two windows of the app and in one open mail and in another calendar.

We are a multi-family household and constantly have to review and update our calendars. We regularly have to check our calendars and update them to match the other household (yes, eventually we want to get onto a shared calendar for this, but that is another story. I have to workout how to use Proton in our household while the other household is probably not going to make the move until I can push them). It is very important that we can use a dedicated calendar app on any device to be able to review just our calendars. Having to open a mail app JUST to open our calendar is an extra step that is preventing us from completing our total migration to Proton. I would love to be able to take us off Google all-together, but the calendar is one major thing that is holding us back.

If Proton doesn't have plans in splitting the mail and the calendar I think that it will be great to create a shortcut to open the calendar first or even make a toggle in the app to open the calendar instead of the mail at start.

Hmmm... disappointing. This make it hard to plan out your day having to jump back and forth constantly. There's not even a way to see a small calendar of events.

I would rather prefer an extended version of the Bridge App, which would include connectors for calendars and contacts! That way, users could simply use Thunderbird or any other mail app for all their mailboxes, calendars and contacts. Even multiple windows.