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1calendar Alternatives

1calendar is described as 'With 1calendar you can keep track of all your activities, events, and to-dos. The calendar also imports timetables from high schools and universities, and events from Facebook. The calendar is available on the web and mobile' and is a Calendar app in the office & productivity category. There are more than 10 alternatives to 1calendar for a variety of platforms, including Online / Web-based, Android, iPhone, Mac and Windows. The best alternative is Google Calendar, which is free. Other great apps like 1calendar are Microsoft Office Outlook, Apple Calendar, iRedMail and BusyCal.

1calendar alternatives are mainly Calendar Apps but may also be Todo List Managers or Email Clients. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of 1calendar.
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1calendar icon1calendar
  12
  • FreeProprietary
  • Online
  • Android
  • iPhone

With 1calendar you can keep track of all your activities, events, and to-dos. The calendar also imports timetables from...

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  1. Google Calendar icon

    Google Calendar

    • FreeProprietary
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Sunbird
    • Google Chrome

    With Google Calendar, its easy to keep track of all your lifes important events in one place. You can add events and send invitations effortlessly, share your schedule with friends and family, and search for events you might enjoy.

    ⚫︎ Sync Across DevicesGoogle Calendar can sync your data across devices like your phone, desktop and tablet
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    Screenshot
  2. Microsoft Outlook, part of the Microsoft Office Suite (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

    ⚫︎ Unified inboxView e-mails (or similar) from all accounts in one unified view with Microsoft Office Outlook.
    ⚫︎ Multiple Account supportMicrosoft Office Outlook support multiple accounts without the need to logout and login
    ⚫︎ Dark ModeMicrosoft Office Outlook supports dark mode for comfortable usage in low light conditions.
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    Outlook 365 on Windows


  3. Apple Calendar icon

    Apple Calendar

    • FreeProprietary
    • Mac
    • iPhone
    • iPad
    • iCloud

    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. See all your calendars in a single window or choose to see only the calendars you want.

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    Screenshot
  4. iRedMail icon

    iRedMail

    • FreemiumOpen Source
    • Linux
    • BSD
    • Self-Hosted

    A fully fledged, free email server solution, an open source project (GPL v2).

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    Main components and working process
  5. BusyCal is the most powerful, flexible, heavily customizable, reliable calendar app for macOS.

    ⚫︎ Sync Across DevicesBusyCal can sync your data across devices like your phone, desktop and tablet
    ⚫︎ Dark ModeBusyCal supports dark mode for comfortable usage in low light conditions.
    ⚫︎ Calendar ViewBusyCal has a built-in calendar view to have a clear overview of your content over time.
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    Month View.


  6. aCalendar icon

    aCalendar

    • FreemiumProprietary
    • Android

    Android calendar-app showing the weeks of the year (week numbers), 21 languages, syncable with Google Calendar:

    ⚫︎ Sync with Google CalendaraCalendar can be synchronized with Google Calendar
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    Full Monthly View
  7. 30 Boxes icon

    30 Boxes

    • FreeProprietary
    • Online

    30 Boxes is an online calendering tool.

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    Example calendar from 30 Boxes
  8. Google Calendar Checker icon

    Google Calendar Checker

    • FreeProprietary
    • Mac
    • Windows
    • Linux

    Quickly see the time until your next meeting from any of your calendars. Click on the button to be taken to your calendar.

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  9. Yahoo! Calendar icon

    Yahoo! Calendar

    • FreeProprietary
    • Online

    You can view an entire month or focus on a specific date and time.

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    No screenshots yet
  10. Easy Calendar icon

    Easy Calendar

    • iPhone

    Experience the ease of use of a weekly calendar in the palm of your hand! Easy Calendar is the new easy way to plan your day. Designed around frequent tasks, Easy Calendar allows anyone to create new events with just a few taps!

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    Screenshot
Showing 10 of 11 alternatives