The calendar icon has disappeared from my menu on my phone and the only way I can enter anything is to go into the apple app and open it from there (which has all my calendar information by the way).  No matter what I do, I can’t reinstall the calendar. It’s in my settings, but no icon at all, it’s ghosting me.

I just purchased One Calendar Premium, and it syncs fine across my devices, but I can only access the premium features on one device.  If I try to do something like even change a color, it says I need to purchase the premium.  I thought it worked across devices. 

Whenever I try to modify a calendar event created automatically by a pro planning application in my Gmail calendar, I face the same issue: the timezone isn't recognized by OneCalendar (it displays "unknown" in the timezone field when Google Agenda, for instance, displays "GMT+2").

The bug is that when I try to save my modifications to the calendar entry, I get an "unknown timezone" error popup, and when dismissing the error popup, the event modification screen closes but without saving my modifications. :-(

I think that a better error handling would be to return to the event modification screen after

Will not ask for edit and will delete the event when a calendar is not chosen or when an error of am/pm (like the beginning of an event starts after the end). Just shuts the window and notifies you of the issue but doesn't save. I have to re-enter everything. Really annoying!

If i want to add the calendar of a second person from my owncloud-server, it won‘t work. Only when i set up an alias adress for the server does it lead to success.

Hello, establishing Sync to Synolgy Calendar with special port does not work. During creation of connection always the error message ' NO CONNECTION' is shown. Isn't it possible to use some port? Regards

Once a festival or a holiday starts, I KNOW it has started. OneCalendar doesn't have to remind me every day of it. One Calendar started showing this behaviour a few months ago on iOs 14 and 15 (iPhone X).

On my Mac Mini using Sierra 10.12.6, the app crashes after clicking on the calendar color within an event set up window. It can be repeated at will. Crash code attached.

If there is no internet connection, the app can't get started.

Why have the holidays dropped out?

Hi!

yours is a great app and it worked flawlessly until two days ago. Now, the widget on the home screen results empty, and yesterday it stated ‘please start onecalendar to refresh widget’. But ai started it, even restarted my iPhone. No success. See attached screenshot.

thanks for the help!

When the IOS client sync the Outlook account, the calendar is repetition.

Why

Great app but synchronization is spelled wrong in the menu. 

Hi, 

I'm trying to connect and sync my One Calendar between my iPhone and Surface Pro 4. I've tried multiple times to connect it but every time it doesn't recognize the App Specific code generated by Apple. iOS and Windows are both updated and current. I follow the step by step instructions from One Calendar but still does not connect. 

I get the following problem when syncing " sequence contains no elements .  I am syncing with zoho personal CALDAV calendar.  Zoho calendar works with apple calendar on same iphone?? 

There's no way to close the app from the icon in the menu bar on MacOS. It's getting tedious having to close it from the dock or launchpad.

Birthdays display multiple times for the same event