I'm looking for a calendar application, ideally one that can run on windows, Mac, and iOS. I want my data to be available offline, and -- here's the kicker -- I don't want to store my data on Google's servers, nor Microsoft's, nor Apple's. I want the data for the calendar to be stored locally, under my sole control.

I might then sync the data file myself using dropbox, spideroak, file transporter, or some other system. The point is I don't want my data stored on someone else's servers. under someone else's control.

  • 1
    +1 Essential question. Note: Dropbox and Spideroak store your data on their servers. To avoid that, consider SparkleShare or OwnCloud. – Nicolas Raoul Apr 10 '14 at 2:38
  • 1
    Good point -- I do know that if I sync via spideroak or dropbox it's on someone else's servers, but I can also control whether it's encrypted or not (using, e.g., Boxcryptor, TrueCrypt...) – MM. Apr 10 '14 at 2:50
  • Fastmail just announced Calendar integration. I've been using them for my email over the past year and has been a great experience so far: blog.fastmail.fm/2014/06/23/announcing-the-fastmail-calendar – Phillip Gruneich Jun 25 '14 at 1:28
  • 3
    How about Mozilla Lightening (mozilla.org/en-US/projects/calendar)? It's an add-on to Thunderbird. A nice feature is that you can either install it locally, or on a thumb drive and use it anywhere – Tymric Aug 1 '14 at 13:11
  • 4
    Have you looked in to hosting your own CalDAV server? I know OSX Server has built-in CalDAV support, so you could host it on your own machine. Apple's Calendar app (OSX and iOS) support CalDAV as well, and there's probably one for Windows (although I don't know one offhand). – Mike S Aug 13 '14 at 2:43

Looks like k5nCal is what you want.

  • Runs on Windows and Mac (it's open source too, so iOS support would need some of your leg work).
  • Stores everything locally, hence you can sync those local files yourself.
  • Works off-line without requiring an Internet connection.

Active Desktop Calendar is a fully customizable calendar with notes, tasks, alarms and contacts provides seamless integration and interactivity with the desktop background. You can organize data in color coded layers and share them in a local network. The program integrates with Outlook to show its appointments/tasks on the desktop and offers connection with Google calendars and web based ICS files. There are preset calendars with holidays for different countries. You can choose calendar icons, fonts, colors and type: one, two or three months on the desktop. Through interactive desktop the program accepts clicks on dates, appointments and tasks. Printing calendar data is easy, in monthly view or as a list of appointments in a chosen date range. Built-in address book allows you to keep details about all your contacts and import them from other programs. CSV and iCal formats are supported for importing and exporting data. The program saves daily backup automatically.

(Source: http://download.cnet.com/Active-Desktop-Calendar/3000-2074_4-10020305.html)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.