I like this app, however the following stop me from using it:

If I want to modify anything to an event set to be repeated every day or week etc.. the app doesn't allow us to modify only from that day and the following days. Only let us change all events or only one.

We need calendar event colors beyond the bland palette currently available. With many entries come many many color needs. 

Hi!

It is not possible to buy subscription in our country.

It would be good to have ability to buy subscription via cryptocoins or other google play independent channel/

Can I add more calendars to what is already there.

I have 5 and need more.

Please, allow synchronisation of all calendar events, not only up to three years back. I think, this would be very useful!

I would like to see weekend days marked with different date color or different background color or background brightness. I think, this would make the calendar views even clearer.

I'm getting the following error all the time on all my devices.. anybody know a solution? 

Not authorized

Action: SyncAccount

OneSuite.Apps.Model.Exceptions.AccountAuthorizationException: Not authorized

  at XCalendarApp.CalDavProvider.DavBasicConnection.Request (System.Uri url, System.String httpMethod, System.String contentType, System.String requestContent, System.Collections.Generic.Dictionary`2[TKey,TValue] requestHeaders, System.Int32 maxRedirects) [0x0023b] in <e7a582c56e8a42fd893af782918beb41>:0 

  at XCalendarApp.CalDavProvider.DavBasicConnection.Request (System.Uri url, System.String method, System.String contentType, System.String requestContent, System.Collections.Generic.Dictionary`2[TKey,TValue] requestHeaders) [0x00081] in <e7a582c56e8a42fd893af782918beb41>:0 

  at Dav.Client.Common.DavCommon.Request (System.Uri url, System.String method, System.String contentType, System.String requestContent, System.Collections.Generic.Dictionary`2[TKey,TValue] headers) [0x00085] in <f292a3d5e9d64c65a49acb041f622d7d>:0 

  at Dav.Client.CalDav.CalDavServer.GetCurrentUserPrincipal () [0x0009e] in <f292a3d5e9d64c65a49acb041f622d7d>:0 

  at Dav.Client.CalDav.CalDavServer.completeUrl () [0x0006f] in <f292a3d5e9d64c65a49acb041f622d7d>:0 

  at Dav.Client.CalDav.CalDavServer.Create (System.Uri url, Dav.Client.Common.IConnection connection) [0x00101] in <f292a3d5e9d64c65a49acb041f622d7d>:0 

  at XCalendarApp.CalDavBaseProvider.CalDavBaseAccount`1[TCachedCalDavBaseCalendar].CreateCalDavServer

Keep receiving the following error:

no such column: AccountOptions

Action: CheckAccountStatus

XCalendarApp.ProviderBase.Exceptions.AccountRequestException: no such column: AccountOptions ---> SQLite.SQLiteException: no such column: AccountOptions at SQLite.SQLiteConnection.Update (System.Object obj, System.Type objType) [0x00166] in <84b9c9e630fa45bd8ac799333976ebbf>:0 at SQLite.SQLiteConnection.Update (System.Object obj) [0x0000d] in <84b9c9e630fa45bd8ac799333976ebbf>:0 at XCalendarApp.SQLite.Repositories.RepositoryBase`1[T].Update (T entity) [0x00006] in <a5178791172844ae8eca5548b22a50ab>:0 at XCalendarApp.ProviderBase.StorageManager`8[TCachedCalendar,TProviderCalendarItem,TCachedAppointment,TProviderAppointmentItem,TCachedContacts,TCachedContact,TProviderContactItem,TAppointmentDbData].UpdateAccount (XCalendarApp.Model.ITransaction transaction, XCalendarApp.ProviderBase.Data.AccountData accountData) [0x00012] in <a5178791172844ae8eca5548b22a50ab>:0 at XCalendarApp.ProviderBase.AccountProviderBase`9[TCachedCalendar,TProviderCalendarItem,TCachedAppointment,TProviderAppointmentItem,TCachedContacts,TCachedContact,TProviderContactItem,TAppointmentDbData,TAccountOptions].StoreAccountEntity () [0x0001b] in <a48c919b0a5d45ee9df16d7db13a34e0>:0 at XCalendarApp.ProviderBase.AccountProviderBase`9[TCachedCalendar,TProviderCalendarItem,TCachedAppointment,TProviderAppointmentItem,TCachedContacts,TCachedContact,TProviderContactItem,TAppointmentDbData,TAccountOptions].set_mAccountSecurityInfo (OneSuite.Apps.Model.Settings.AccountSecurityInfo value) [0x00012] in <a48c919b0a5d45ee9df16d7db13a34e0>:0 at XCalendarApp.ProviderBase.AccountProviderBase`9[TCachedCalendar,TProviderCalendarItem,TCachedAppointment,TProviderAppointmentItem,TCachedContacts,TCachedContact,TProviderContactItem,TAppointmentDbData,TAccountOptions].OnTokenRefresh (CodeSpark.Apps.Common.OAuth.OAuth2AccessToken newToken) [0x0000e] in <a48c919b0a5d45ee9df16d7db13a34e0>:0 at XCalendarApp.GoogleProvider.GoogleAccount.<CreateSyncScope>b__4_0 (CodeSpark.Apps.Common.OAuth.OAuth2AccessToken t) [0x00000] in <34a9ed95da234a2abb4c1bea90e4071f>:0 at XCalendarApp.ProviderBase.OAuth2.OAuthAccountTokenContext.StoreRefreshedToken (CodeSpark.Apps.Common.OAuth.OAuth2AccessToken oAuth2AccessToken) [0x0001b] in <a48c919b0a5d45ee9df16d7db13a34e0>:0 at CodeSpark.Apps.Common.OAuth.OAuthTokenService.RefreshAccessToken () [0x0020f] in <33cd3532371e470b999b2195378ebba3>:0 at CodeSpark.Apps.Common.Net.WebRequests.ScopedOAuthJsonWebRequest.ExecuteRequest[T] (System.String url, CodeSpark.Apps.Common.Net.Types.HttpMethod httpMethod,

Man kann den aktuellen Tag in der Monatsübersicht kaum finden. Dieser sollte deutlich markiert sein, evtl. als ein rotes Feld. Ich vermisse die vielen Einstellungsmöglichkeiten von „Bussines Calendar 2“…. 😔

Opening an entry imported from other calendars, options available are, Open series / Open Occurrence or to Share. Suggest an option to be directed to the original entry calendar to enable edit change / delete.

I understand that certain features cost money. Would it still be possible to choose the basic color of the appointment entries? Some colors are difficult for some people to see. Having different colors for different dates is great, even if you have to pay for it.

i have appointments on the 1st and 15th of a month. Unfortunately you can't specify a date for repetitions. Could you please change this.

I have OneCalendar on a Fairphone 4 with e/OS. It works absolutely fine! But there is no option to upgrade to Premium. Under "options" -> "Kalenderfarben" it says: "Fehler beim Laden der Premium Produktinfo: Product not found". I attach a screenshot. What can I do to get the Premium version? I have done all updates and also de- and re-installed onecalendar.

  I am trying to find out how to change/update the calendar name so I could easily see witch colour is linked to a specific calendar but it seems impossible find out if or how i can be done.

Er staat een verjaardag verkeerd in de agenda die moet van 14 naar 15 juli maar nergens kan ik hem aanpassen 

Several events that have been synced imported are off by hours. A flight notice synced from email is off. All my sport event reminders show up 8 hours later. My time zone is correctly se. I had to turn that calendar off just to stop getting reminders long after the game is over. 

dateTime parameter is an invalid time

Action: SyncReceiveCalendar

Calendar: Denny & Emmy

System.ArgumentException: dateTime parameter is an invalid time

  at System.TimeZoneInfo.ConvertTimeToUtc (System.DateTime dateTime, System.TimeZoneInfo sourceTimeZone, System.TimeZoneInfoOptions flags) <0x100b4bbec + 0x00134> in <aae03b95719e488f8a163bae4d2b5dcb#fa7403f0528be75c2d3aabe72112c8d3>:0

  at System.TimeZoneInfo.ConvertTimeToUtc (System.DateTime dateTime, System.TimeZoneInfo sourceTimeZone) <0x100b4bbac + 0x0000f> in <aae03b95719e488f8a163bae4d2b5dcb#fa7403f0528be75c2d3aabe72112c8d3>:0

  at XCalendarApp.Common.iOS.Timezones.XTimeZoneHelper.ConvertTimeToUtc (System.DateTime dateTime, System.TimeZoneInfo sourceTimeZone) <0x1025c9b88 + 0x00013> in <c4d8accfdf8f421dab9cd255342d4b28#fa7403f0528be75c2d3aabe72112c8d3>:0

  at XCalendarApp.Common.TimeZones.TimeZoneHelper.ConvertTimeToUtc (System.DateTime dateTime, System.TimeZoneInfo sourceTimeZone) <0x101a59654 + 0x0004f> in <a98612eb509144f6897999cdfec23ae9#fa7403f0528be75c2d3aabe72112c8d3>:0

  at XCalendarApp.Common.Timezones.DateTimes.TZDateTime.ToUtc (System.Int16 timezoneId) <0x101a5da6c + 0x00053> in <a98612eb509144f6897999cdfec23ae9#fa7403f0528be75c2d3aabe72112c8d3>:0

  at XCalendarApp.Common.Timezones.DateTimes.TZDateTime.ToUtcDateTime () <0x101a5d93c + 0x00013> in <a98612eb509144f6897999cdfec23ae9#fa7403f0528be75c2d3aabe72112c8d3>:0

  at XCalendarApp.ProviderBase.StorageManager`8[TCachedCalendar,TProviderCalendarItem,TCachedAppointment,TProviderAppointmentItem,TCachedContacts,TCachedContact,TProviderContactItem,TAppointmentDbData].AppointmentToEntity (TCachedAppointment appointment, System.String providerItemID, System.String providerItemLastUpdated) <0x1021bb6b8 + 0x00173>

I support several people w calendar management and I get a lot of invites. The thing is, a lot of the in invites are for me perse, I like to leave them on the calendar. Is there a way of deleting the notifications? I’ve tried to tinker with it but maybe I am missing something.  I’d be glad to answer any questions :)