One Calendar AlternativesCalendar Apps like One Calendar

One Calendar is described as 'The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Facebook and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays' and is a Calendar app in the office & productivity category. There are more than 25 alternatives to One Calendar for a variety of platforms, including Windows, Web-based, Android, iPhone and Android Tablet apps. The best One Calendar alternative is Google Calendar, which is free. Other great apps like One Calendar are Fossify Calendar, Microsoft Outlook, Simple Calendar and Morgen.

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One Calendar alternatives are mainly Calendar Apps but may also be Todo List Managers or Email Clients. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of One Calendar.

One Calendar

Calendar App
Freemium • Proprietary

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Facebook and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your...

More about One Calendar

One Calendar alternatives page was last updated Jan 7, 2024

Google Calendar
933 likes
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.
145 Google Calendar alternatives
License model
- Free • Proprietary
Application type
- Calendar App
Platforms
- Online
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Sunbird
- Google Chrome
+4
Google Calendar Features
1. Reminder for deadlines
2. Material design
3. Data export/import
4. Shared Calendar
5. Cloud Sync
6. IFTTT Integration
7. Calendar Integration
8. Calendar View
9. Dark Mode
10. Passkey Support
Google Calendar VS One Calendar
Is Google Calendar a good alternative to One Calendar?
Comments about Google Calendar as an Alternative to One Calendar

thniels
Only supports Google calendars, not CalDAV etc.
Negative comment •Sep 26, 2022
0
- Google Calendar is the most popular Web-based, Android, iPhone & iPad alternative to One Calendar.
- Google Calendar is the most popular free alternative to One Calendar.
- Google Calendar is Free and ProprietaryOne Calendar is Freemium and Proprietary

Fossify Calendar
26 likes
Your privacy-aware, open-source calendar with intuitive design and multi-platform syncing.
49 Fossify Calendar alternatives
+5
License model
- Free • Open Source
Application type
- Calendar App
Platforms
- Android
- F-Droid
- Android Tablet
Top Fossify Calendar Features
1. Ad-free
2. No registration required
3. No Tracking
4. Privacy focused
5. Works Offline
6. Calendar View
7. Dark Mode
8. Reminders
9. Lightweight
10. Sync with Google Calendar
11. Multiple Account support
12. Support for Themes
Fossify Calendar VS One Calendar
Is Fossify Calendar a good alternative to One Calendar?
- Fossify Calendar is the most popular Open Source alternative to One Calendar.
- Fossify Calendar is Free and Open SourceOne Calendar is Freemium and Proprietary
- Fossify Calendar is Privacy focused and LightweightOne Calendar is not according to our users

Microsoft Outlook
394 likes
Streamline emails, calendars, contacts, and task management with a smart inbox prioritizing critical messages. Includes calendar scheduling, third-party app integration like Facebook, Dropbox, and Trello, and support for Microsoft Exchange, Outlook.com, and Gmail, ensuring efficient task and email handling.
136 Microsoft Outlook alternatives
License model
- Paid • Proprietary
Application types
- Email Client
- Calendar App
Platforms
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
- Android Wear
+7
Top Microsoft Outlook Features
1. Exchange
2. Native application
3. Email Organizer
4. Calendar Integration
5. Calendar View
6. Support for Aliases
7. Multiple Account support
8. Works Offline
9. Cloud Sync
10. Unified inbox
11. Dark Mode
12. Support for @mentions
Microsoft Outlook VS One Calendar
Is Microsoft Outlook a good alternative to One Calendar?
Comments about Microsoft Outlook as an Alternative to One Calendar

Guest
No editing of google entries in the outlook app
Negative comment •Jul 28, 2019
0
- Microsoft Outlook is the most popular Windows & Mac alternative to One Calendar.
- Microsoft Outlook is the most popular commercial alternative to One Calendar.
- Microsoft Outlook is Paid and ProprietaryOne Calendar is Freemium and Proprietary

Ad
Morgen
Morgen merges your calendars, to-dos, productivity apps, and schedulers, so you manage all your time in one place. With Morgen as your time management hub, you’ll stop wasting time flipping between calendars, apps, and browser ta...

https://morgen.so
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Simple Calendar
51 likes
A simple calendar with optional CalDAV synchronization. You can easily create recurring events and setup reminders, it can also display week numbers.
97 Simple Calendar alternatives
+2
License model
- Freemium • Proprietary
Application type
- Calendar App
Platforms
- Android
- Android Tablet
- F-Droid
Simple Calendar Features
1. Dark Mode
2. Works Offline
3. Reminders
4. WebDAV Support
5. Notifications
6. Customizable
7. Built-in Calendar
Warning
The Simple Mobile Tools suite of mobile apps have been bought by ZipoApps in December 2023, and now show some ads, while not being open source anymore. If you're looking for something similar to the original Simple Mobile Tools apps, you should take a look at the Fossify suite of apps (listed on AlternativeTo). More information here: Simple Mobile Tools bought by ZipoApps, sparks controversy over future of open source apps
Simple Calendar VS One Calendar
Is Simple Calendar a good alternative to One Calendar?

Morgen
26 likes
Morgen merges your calendars, to-dos, productivity apps, and schedulers, so you manage all your time in one place. With Morgen as your time management hub, you’ll stop wasting time flipping between calendars, apps, and browser tabs, and just get work done.
108 Morgen alternatives
License model
- Freemium • Proprietary
Application types
- Calendar App
- Todo List Manager
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
+1
Top Morgen Features
1. Pomodoro Timer
2. Cloud Sync
3. Sync with Google Calendar
4. Calendar Integration
5. Dark Mode
6. Privacy focused
7. Scheduling
8. Todoist integration
9. CalDAV Support
10. Calendar Sync
11. Outlook integration
12. Personal-assistant
Morgen VS One Calendar
Is Morgen a good alternative to One Calendar?
- Morgen is the most popular Linux alternative to One Calendar.
- Morgen is Freemium and ProprietaryOne Calendar is also Freemium and Proprietary
- Morgen is Privacy focusedOne Calendar is not according to our users

Apple Calendar
140 likes
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.
87 Apple Calendar alternatives
License model
- Free • Proprietary
Application type
- Calendar App
Platforms
- Mac
- iPhone
- iPad
- iCloud
Apple Calendar Features
Web-Based
Sync with iCloud
Week Planner
Scheduling
+1
Apple Calendar VS One Calendar
Is Apple Calendar a good alternative to One Calendar?

Me Calendar
3 likes
Me Calendar is a user-friendly calendar app equipped with widget support. Seamlessly integrate with Google Calendar, Microsoft 365, Outlook.com, iCloud, CalDAV, and WebCAL.
49 Me Calendar alternatives
License model
- Freemium • Proprietary
Application type
- Calendar App
Platforms
- Windows
+3
Top Me Calendar Features
1. Lightweight
2. Dark Mode
3. Calendar View
4. Cloud Sync
5. Multiple Account support
6. Calendar Integration
7. Sync with Google Calendar
8. No Tracking
9. WYSIWYG Support
10. Reminders
11. Full-Text Search
Me Calendar VS One Calendar
Is Me Calendar a good alternative to One Calendar?

Calendar
18 likes
Calendar, part of Office Online , is a time-management web application by Microsoft.
57 Calendar alternatives
License model
- Free • Proprietary
Application types
- Calendar App
- Todo List Manager
Platforms
- Online
Calendar Features
Reminders
Shared Calendar
+1
Calendar VS One Calendar
Is Calendar a good alternative to One Calendar?

Calendar Lock PEA
16 likes
Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.
63 Calendar Lock PEA alternatives
License model
- Free • Open Source
Application type
- Calendar App
Platforms
- Mac
- Windows
- Linux
Calendar Lock PEA Features
Privacy focused
Password encryption
Authenticated encryption
Encrypted Notes
Calendar Lock PEA VS One Calendar
Is Calendar Lock PEA a good alternative to One Calendar?

Kalendar
8 likes
Kalendar is a Kirigami-based calendar application that uses Akonadi. It lets you add, edit and delete events from local and remote accounts of your choice, while keeping changes syncronised across your Plasma desktop or phone.
108 Kalendar alternatives
License model
- Free • Open Source
Application type
- Calendar App
Platforms
- Linux
+5
Kalendar Features
1. KDE Plasma integration
2. KDE
3. Dark Mode
4. Ad-free
5. Sync with Google Calendar
6. Calendar Sync
Kalendar VS One Calendar
Is Kalendar a good alternative to One Calendar?

Cozi
10 likes
Cozi is a free online calendar that helps families coordinate activities. See who needs to be where and when, be reminded of upcoming appointments, and print your calendar by week or month. Cozi is the easiest online calendar you'll ever use.
78 Cozi alternatives
License model
- Free • Proprietary
Application types
- Calendar App
- Todo List Manager
Platforms
- Online
- Android
- iPhone
- Blackberry
- Android Tablet
- Windows Phone
- iPad
- Kindle Fire
Cozi Features
Family Calendar
Desktop Application
+2
Cozi VS One Calendar
Is Cozi a good alternative to One Calendar?

TheDayBefore
Like this app
With The Day Before, you won't miss precious moments in your busy daily life.
19 TheDayBefore alternatives
+5
License model
- Freemium • Proprietary
Application type
- Calendar App
Platforms
- Android
- iPhone
- Android Tablet
- iPad
TheDayBefore Features
Recurring Tasks
Reminders
Works Offline
TheDayBefore VS One Calendar
Is TheDayBefore a good alternative to One Calendar?