One Calendar

One Calendar for PC and Mac

Written by Code Spark

  • Category: Productivity
  • Release date: 2021-05-02
  • Licence: Free
  • Software version: 3.4.0
  • File size: 92.26 MB
  • Compatibility: Available on Windows 10, Windows 8.1/8, Windows 7, Windows Vista and Mac OS 10-11 11.0
  • How it works | What is One Calendar?

Whatʹs Great

1. The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX,, ownCloud and more.

One Calendar for PC and Mac Screenshots


Features and Description

Key Features

Latest Version: 3.4.0

  • Licence: Free
  • Rated 4.7/5 By 7,449 People

    What does One Calendar do? The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX,, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays. OneCalendar is available on all platforms.

    Download for MacOS - server 1 --> Free

    Download Latest Version

    Download and Install One Calendar

    Download for PC - server 1 -->

    Download for MacOS - server 1 --> Free

    Thank you for visiting our site. Have a nice day!

    More apps by Code Spark

    Software Installation Requirements

    PC Compactibility/Requirements for Installation

    Compactible OS list:
    1. Windows 10
    2. Windows 8.1
    3. Windows 7
    4. Windows Vista

    Requirements for MacOS Installation

    Intel, 64-bit processor, OS X 10.7 or later.

    Compactible OS list:
    1. OS X 10.10: Yosemite
    2. OS X 10.11: El Capitan
    3. macOS 10.12: Sierra
    4. macOS 10.13: High Sierra
    5. macOS 10.14: Mojave8
    6. macOS 10.15: Catalina
    7. macOS Big Sur (macOS 11)


    One Calendar - How do I download the app on Windows PC?

    If you want to download the software on your windows pc or mac, you could either first visit the Mac store or Microsoft AppStore and search for the app OR you can easily use any of the download links we provided above under the "Download and Install" header section to download the application

    One Calendar - Is it safe to download?

    Yes. The app is 100 percent (100%) safe to download and Install. Our download links are from safe sources and are frequently virus scanned to protect you

    Software Reviews and Critisims

    • By Scott1155

      Random Repeatable Crashes iPhone 12 Pro

      iPhone 12 Pro, iOS 14.4 - One Calendar crashes at random times when I switch between viewing modes (list, day, week, month, year). The crash is random but very repeatable and easy to duplicate. A few days ago I sent crash information (screenshot and crash log dump) to the developer but have not received any response whatsoever. When the app doesn’t crash it works alright for a free app. Hopefully the developer will act on the crash information that I provided. ***UPDATE*** Still no response from developer or any update to the app. I could not handle the crashes with the app as they were too frequent. I uninstalled the app and reinstalled the app in an attempt to resolve the crashing issue. Now the app wants to charge me $4.99 to go premium just to gain the features back that I had before. NO WAY will I pay $4.99 for an app that crashes when I change viewing mode. I have moved over to Google Calendar as it has plenty of features and works without crashing. Bye, bye One Calendar!

    • By BOSS🔫

      Great app for all devices

      To get the most out of this application you’re going to have to buy the premium but it is well worth it. As a college student I constantly switch between my devices (iPhone, iPad, and PC) and OneCalendar is perfectly harmonious with every one of my devices. It’s easy to use, the app syncs fast, and you can link every account you could ever want to use to access birthdays and events. Wonderful app and I would recommend to anyone looking for a simple and effective scheduling tool.

    • By Plc1968

      Good app needs more features

      I have used several different calendars. I really like this one, but don’t like that you can’t copy and paste an event. Would also like the ability to change the calendar that an event is attached to once it is created. I have multiple calendars set up for different people in my family so that I can keep track of their events in addition to my own. But if I accidentally create an event in my calendar and need to change to another calendar, I have to delete the event and recreate it. Overall, I like the look of the calendar and ability to customize the look as well.

    • By grliving

      Clean, Uncluttered Design

      I love this calendar app. I appreciate the simplicity and clarity of the display. So many other calendar apps are so complex, offering so many different options, that even the settings are hard to understand. The simplicity of the interface is intended by the developer. Just enough options to have the calendar look the way I want, but not so many options as to make it confusing. The developer is also quick to respond when I have made contact.