Fossify Calendar AlternativesCalendar Apps like Fossify Calendar

Fossify Calendar is described as 'Your privacy-aware, open-source calendar with intuitive design and multi-platform syncing' and is a Calendar app in the office & productivity category. There are more than 25 alternatives to Fossify Calendar for a variety of platforms, including Android, Linux, Windows, iPhone and Web-based apps. The best Fossify Calendar alternative is Google Calendar, which is free. Other great apps like Fossify Calendar are Etar, Simple Calendar, OurCal and Rainlendar.

Fossify Calendar iconFossify Calendar
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Your privacy-aware, open-source calendar with intuitive design and multi-platform syncing.

More about Fossify Calendar
More about Fossify Calendar
Fossify Calendar alternatives page was last updated Apr 27, 2025
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  1. Google Calendar icon

    Google Calendar

     936 likes
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    Manage events seamlessly with syncing across devices, automatic event creation from Gmail, shareable schedules, customizable reminders, and a user-friendly interface. Features include dark mode, integration with Google services, and support for recurring events and global time zones.

    150 Google Calendar alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Sunbird
    • Google Chrome
    Google Calendar screenshot 1

    Top Google Calendar Features

    1.  Reminder for deadlines
    2.  Material design
    3.  Data export/import
    4.  Shared Calendar
    5.  Cloud Sync
    6.  Dark Mode
    7.  Calendar Integration
    8.  Calendar View
    9. IFTTT icon  IFTTT Integration
    10.  Passkey Support
    11.  GSuite Integration

    Google Calendar VS Fossify Calendar

     

    • Google Calendar is the most popular Web-based, Android, iPhone & iPad alternative to Fossify Calendar.

    • Google Calendar is the most popular free alternative to Fossify Calendar.

    • Google Calendar is Free and ProprietaryFossify Calendar is Free and Open Source
  2. Etar icon

    Etar

     79 likes
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    Material design open source calendar for Android.

    49 Etar alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Etar screenshot 1

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Material design
    2.  Ad-free
    3.  No Tracking
    4.  Works Offline
    5.  Dark Mode
    6.  Multiple Account support
    7.  GPS Location Tracking

    Etar VS Fossify Calendar

     

    • Etar is the most popular Open Source alternative to Fossify Calendar.

    • Etar is Free and Open SourceFossify Calendar is also Free and Open Source
    • Etar is Lightweight and Privacy focusedFossify Calendar is not according to our users
  4. Simple Calendar icon

    Simple Calendar

     51 likes
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    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

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • SK flagSlovakia
    • European Union flagEU

    Platforms

    • Android
    • Android Tablet
    Simple Calendar screenshot 1
    Simple Calendar screenshot 2
    Simple Calendar screenshot 3
    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

    Properties

    1.  Customizable

    Features

    1.  Dark Mode
    2.  Works Offline
    3.  Reminders
    4.  WebDAV Support
    5.  Notifications
    6.  Built-in Calendar

    Simple Calendar VS Fossify Calendar

     
  5. Ad
    Screenshot
    Morgen icon
    Morgen

    Brings together calendars, to-dos, productivity apps, and schedulers in one platform. Integrates with major services like Google Calendar, iCloud, Todoist, and video conferencing tools such as Zoom. Offers native scheduling simil...

    https://morgen.so
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  6. OurCal icon

    OurCal

     5 likes
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    This app is tailored for families, couples, friends, and groups, providing end-to-end encryption for secure data, seamless calendar creation, syncing, private chats, and widgets for easy access, ensuring you never miss an event.

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • GB flagUnited Kingdom

    Platforms

    • Android
    • iPhone
    OurCal screenshot 1
    OurCal screenshot 2
    OurCal screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  No registration required
    2. Google Calendar icon  Sync with Google Calendar
    3.  No Tracking
    4.  End-to-End Encryption
    5.  Reminders
    6.  Calendar View
    7.  Ad-free
    8.  Calendar Sync
    9. Microsoft Outlook icon  Outlook integration
    10.  iOS widget
    11. Google Calendar icon  Google Calendar integration
    12.  Shared Calendar

    OurCal VS Fossify Calendar

     
  7. Rainlendar icon

    Rainlendar

     117 likes
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    Rainlendar is a feature rich calendar application that is easy to use and doesn't take much space on your desktop. The application is platform independent so you can run it on all major operating systems: Windows, Linux and Mac OS X.

    75 Rainlendar alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • FI flagFinland
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    Events and Tasks

    Properties

    1.  Customizable

    Features

    1.  Reminders
    2.  Ad-free
    3. Apple Calendar icon  iCal integration
    4.  No registration required
    5. Google Calendar icon  Sync with Google Calendar
    6.  Calendar Integration
    7.  Works Offline
    8.  Recurring Tasks
    9.  Multiple languages
    10.  Sync with Fantastical

    Rainlendar VS Fossify Calendar

     

    • Rainlendar is the most popular Windows, Mac & Linux alternative to Fossify Calendar.

    • Rainlendar is Freemium and ProprietaryFossify Calendar is Free and Open Source
  8. Nextcloud Calendar icon

    Nextcloud Calendar

     26 likes
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    The Calendar app is a user interface for Nextcloud's CalDAV server. Easily sync events from various devices with your Nextcloud and edit them online.

    31 Nextcloud Calendar alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    • Self-Hosted
    • Nextcloud
    Nextcloud Calendar screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Cloud Sync
    2. Nextcloud icon  Nextcloud integration
    3.  No Tracking
    4.  Calendar View
    5.  Calendar Integration
    6.  Full-Text Search
    7.  Reminders
    8.  Dark Mode
    9.  Subtasks
    10.  Support for @mentions
    11.  Two-factor Authentication
    12.  Ad-free

    Nextcloud Calendar VS Fossify Calendar

     

    • Nextcloud Calendar is the most popular Self-Hosted alternative to Fossify Calendar.

    • Nextcloud Calendar is Free and Open SourceFossify Calendar is also Free and Open Source
    • Nextcloud Calendar is Privacy focusedFossify Calendar is not according to our users
  10. Apple Calendar icon

    Apple Calendar

     141 likes
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    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.

    93 Apple Calendar alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • iPhone
    • iPad
    • iCloud
    Apple Calendar screenshot 1

    Apple Calendar Features

    1.  Web-Based
    2.  Sync with iCloud
    3.  Week Planner
    4.  Scheduling

    Apple Calendar VS Fossify Calendar

     
  11. Morgen icon

    Morgen

     27 likes
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    Brings together calendars, to-dos, productivity apps, and schedulers in one platform. Integrates with major services like Google Calendar, iCloud, Todoist, and video conferencing tools such as Zoom. Offers native scheduling similar to Calendly, enhancing time management efficiency.

    111 Morgen alternatives

    License model

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    Morgen screenshot 1

    Properties

    1.  Privacy focused

    Features

    1. Todoist icon  Todoist integration
    2.  CalDAV Support
    3.  Scheduling
    4.  Pomodoro Timer
    5. Google Calendar icon  Sync with Google Calendar
    6.  Reminders
    7.  Cloud Sync
    8.  Recurring Tasks
    9.  Calendar Integration
    10.  Dark Mode
    11. Google Calendar icon  Google Calendar integration
    12. Obsidian icon  Obsidian Integration

    Morgen VS Fossify Calendar

     

    • Morgen is the most popular commercial alternative to Fossify Calendar.

    • Morgen is Paid and ProprietaryFossify Calendar is Free and Open Source
    • Morgen is Privacy focusedFossify Calendar is not according to our users
  12. Kontact icon

    Kontact

     37 likes
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    Personal Information Manager (Mail, Contact, Calendar and more).

    109 Kontact alternatives

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Linux
    • Flathub
    Kontact screenshot 1

    Kontact Features

    1.  Google integration
    2.  Convert Email to Task
    3.  KDE
    4.  Feed Reader
    5.  Personal Information Manager (PIM)
    6.  Contacts

    Kontact VS Fossify Calendar

     
  13. fruux icon

    fruux

     33 likes
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    fruux is a free service that takes care of your contacts, calendars and more so you don't have to. Never manually copy contacts and calenders between your devices again!

    54 fruux alternatives

    License model

    • Freemium • Open Source

    Application type

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Blackberry
    • Windows Phone
    • iPad
    • Blackberry 10
    • Sailfish OS
    • Software as a Service (SaaS)
    fruux screenshot 1

    fruux Features

    1.  CardDAV Support
    2.  Contacts
    3.  CalDAV Support
    4.  Sync Contacts
    5.  Calendar Sync
    6.  CalDAV Server

    fruux VS Fossify Calendar

     

    • fruux is the most popular SaaS alternative to Fossify Calendar.

    • fruux is Freemium and Open SourceFossify Calendar is Free and Open Source
  14. Kolab Community icon

    Kolab Community

     41 likes
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    Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.

    47 Kolab Community alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Linux
    • Online
    • Self-Hosted

    Kolab Community Features

    1.  Real time collaboration
    2.  Video Conferencing
    3.  Contacts
    4.  Voice Chat
    5.  CardDAV Support
    6.  IMAP Support
    7.  CalDAV Support
    8.  WebDAV Support

    Kolab Community VS Fossify Calendar

     
  15. BusyCal icon

    BusyCal

     21 likes
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    BusyCal is the most powerful, flexible, heavily customizable, reliable calendar app for macOS. It's packed with time-saving features and compatible with all leading cloud services including Reminders, iCloud, Google, Exchange, Office 365, Yahoo, Fastmail, Fruux, Kerio, Zoom...

    59 BusyCal alternatives

    License model

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • iPhone
    • iPad
    • Apple Watch
    • MacPaw Setapp
    Month View.

    BusyCal Features

    1.  Cloud Sync
    2.  Dark Mode
    3.  Calendar Integration
    4.  Calendar View
    5.  Recurring Tasks
    6.  Calendar Sync
    7.  Group calendar filters
    8.  Snooze Alarm

    BusyCal VS Fossify Calendar

     
12 of 49 Fossify Calendar alternatives