The Best 17 InstaCal Alternatives

  • Lightning Calendar icon

    Lightning Calendar

    Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email. .

    Free Open Source Mac OS X Windows Linux Thunderbird SeaMonkey

    CalDAV CardDAV
  • Apple Calendar icon

    Apple Calendar

    Keep track of your busy schedule and share it with others using Calendar. Create separate calendars — one for home, another for school, a third for work, and so on.

    Free Mac OS X iPhone iPad iCloud

  • Kontact icon

    Kontact

    Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful KPart technology, existing applications are seamlessly integrated into one.

    Free Open Source Windows Linux

  • Itsycal icon

    Itsycal

    Itsycal is a tiny calendar for your Mac menu bar. If you want, it will display your appointments and serve as a companion to the Mac Calendar app.

    Free Open Source Mac OS X

  • Maya icon

    Maya

    maya is a slim, lightweight, gcal-syncing gtk+ calendar application written in vala, specifically for elementary os . also looks and works great on other gtk+ desktops.

    Free Open Source Linux

  • Calbird icon

    Calbird

    Simple, instant scheduling. Set your availability and share with your invitee and let them book a time to your calendar in one click.

    Freemium Web

  • Calendars 5 icon

    Calendars 5

    Calendars 5 seamlessly syncs with local iOS calendars, Reminders and even Google Calendar. Now all your events and tasks are in a single application, which is always on hand.

    Commercial iPhone iPad

  • Calendar 366 icon

    Calendar 366

    Appointments and reminders, meetings and deadlines, birthdays and dates - make the most of your time with Calendar 366 II! Anything a calendar can do, Calendar 366 II can do better - and all functions can be adjusted easily and...

    Commercial

    Works Offline Sync with iCloud
  • Day-O icon

    Day-O

    Day-O is a simple menu bar clock replacement with a simple calendar for your Mac. Which uses strftime style customisation.

    Free Mac OS X

  • qOrganizer icon

    qOrganizer

    qOrganizer is a general organizer that includes a calendar with schedule,reminders,journal/notes for every day, to-do list. But provides features useful for students...

    Free Open Source Windows Linux BSD

  • SSuite My Calendar Diary icon

    SSuite My Calendar Diary

    SSuite My Calendar Diary Portable is a software utility whose purpose is to provide individuals with a simple means of keeping better track of their schedule. ...

    Free Windows