The Best Free Google Calendar AlternativesTop Calendar Apps like Google Calendar

The best free alternative to Google Calendar is Etar, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Google Calendar and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Google Calendar are Fossify Calendar, Proton Calendar, Calendar Lock PEA and Tuta Calendar.

filter to find the best alternatives

Google Calendar alternatives are mainly Calendar Apps, but if you're looking for Todo List Managers or Task Management Tools you can filter on that. Other popular filters include Open Source, Android, Self-Hosted, EU, Android + Open Source, iPhone and Free. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Google Calendar.

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Get a badge for your siteGoogle Calendar alternatives page was last updated Jul 20, 2026

Etar
88 likes
Material design open source calendar for Android.
Cost / License
Free
Open Source (GPL-3.0)
Application type
Calendar
Origin
Germany
EU
Platforms
Android
Android Tablet
F-Droid
Germany
EU
+8
Good alternative?Is Etar a good alternative to Google Calendar?

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5comments
Etar vs Google Calendar Comments
Top Positive Comment by Guest · Nov 23, 2019
Nice, clean, and to the point calendar!
Top Negative Comment by paddling583 · Jul 2, 2024
It has a terrible interface and the description lied about it being a material design. It also lacks export and sync.
Negative comment by Guest · Jan 24, 2025
does not conform to UNIX principles (let the application be one, but it will work well and cooperate with other functions and applications in the system); The interface is hideous. Nothing is anywhere, it's hard to figure out; It is not practical. Notion Calendar or Apple Calendar for example have a lot of common handy features that Etar doesn't have;
3 of 5 comments
Etar is Free and Open SourceGoogle Calendar is Free Personal and Proprietary
Etar is Lightweight and Privacy focusedGoogle Calendar is not according to our users
Fossify Calendar
64 likes
Your privacy-aware, open-source calendar with intuitive design and multi-platform syncing.
68 Fossify Calendar alternatives
Cost / License
Free
Open Source (GPL-3.0)
Application type
Calendar
Origin
India
Platforms
Android
Android Tablet
F-Droid
OpenAPK
India
Good alternative?Is Fossify Calendar a good alternative to Google Calendar?

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2comments
Fossify Calendar vs Google Calendar Comments
Positive comment by amphetamachine · Jun 19, 2026
Numerous outstanding bugs make Fossify Calendar not recommendable as a working alternative to Google Calendar. Some I've personally experienced: Often fails to display events in the calendar; Interprets event recurrence information incorrectly; Re-writes UIDs when importing, leading to duplicating events on re-import/update.
Positive comment by Guest · Oct 6, 2024
Customizable and you have control over your data.
2 of 2 comments
Fossify Calendar is Free and Open SourceGoogle Calendar is Free Personal and Proprietary
Fossify Calendar is Privacy focused, Customizable and LightweightGoogle Calendar is not according to our users
Proton Calendar
119 likes
Your calendar is a record of your life. Proton Calendar helps keep it private.
53 Proton Calendar alternatives
Cost / License
Freemium
Proprietary (GPL-3.0)
Application type
Calendar
Origin
Switzerland
Platforms
Online
Android
iPhone
Android Tablet
iPad
Tor
Android Auto
Switzerland
+2
Good alternative?Is Proton Calendar a good alternative to Google Calendar?

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4comments
Proton Calendar vs Google Calendar Comments
Positive comment by Klaes Ethan · Mar 1, 2026
Looks very nice and clean, works well, has loads of features and is mostly free. My one complaint (and the reason I will be using calendar.online instead) is that there is no horizontal version for android tablets. I don't want to use my android tablet vertically.
Positive comment by Deividas Losikov · Sep 26, 2021
ProtonCalendar may not be as feature-rich as Google Calendar, but their main focus is protecting user data with end-to-end encryption. The free plan is enough for basic calendar functionality, but paid subscriptions give extra benefits for supporting their business model, as that's their only source of income.
Comment by newbread · Feb 17, 2023
ProtonCalendar is still missing the search feature.
3 of 4 comments
Proton Calendar is Freemium and ProprietaryGoogle Calendar is Free Personal and Proprietary
Proton Calendar is Privacy focusedGoogle Calendar is not according to our users
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Calendar Lock PEA
18 likes
Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.
79 Calendar Lock PEA alternatives
Cost / License
Free
Open Source
Application type
Calendar
Platforms
Mac
Windows
Linux
Good alternative?Is Calendar Lock PEA a good alternative to Google Calendar?
Tuta Calendar
50 likes
Tuta Calendar offers secure event organization with end-to-end encryption and no ads or tracking. Enjoy multi-device sync, multiple calendar views, and offline access. Fully compliant with strict German data protection laws. Manage recurring events, unlimited calendars, and seamlessly integrate with Tuta Mail.
Cost / License
Freemium
Open Source (GPL-3.0)
Application type
Calendar
Origin
Germany
EU
Platforms
Online
Android
iPhone
Android Tablet
iPad
F-Droid
Thunderbird
OpenAPK
Germany
EU
+4
Good alternative?Is Tuta Calendar a good alternative to Google Calendar?

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1comment
Tuta Calendar vs Google Calendar Comments
Positive comment by JOPloume · Apr 20, 2025
End-to-end encryption and works across all platforms: for me, on Android, Mac, and Windows (and even via Browser)!
1 of 1 comments
Tuta Calendar is Freemium and Open SourceGoogle Calendar is Free Personal and Proprietary
Tuta Calendar is Privacy focused, Lightweight and CustomizableGoogle Calendar is not according to our users
Simple Calendar
52 likes
A simple calendar with optional CalDAV synchronization. You can easily create recurring events and setup reminders, it can also display week numbers.
106 Simple Calendar alternatives
Cost / License
Freemium
Proprietary (GPL-3.0)
Application type
Calendar
Origin
Israel
Alerts
Warning
Platforms
Android
Android Tablet
Israel
+5
Good alternative?Is Simple Calendar a good alternative to Google Calendar?

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2comments
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 Google Calendar Comments
Positive comment by Guest · Sep 21, 2018
Open source, has widgets and is quite configurable
Positive comment by Malkhaz Nikolashvili · Nov 12, 2022
I really prefer Google Calendar
2 of 2 comments
Simple Calendar is Freemium and ProprietaryGoogle Calendar is Free Personal and Proprietary
Simple Calendar is CustomizableGoogle Calendar is not according to our users
Nextcloud Calendar
34 likes
Calendar interface for CalDAV enabling cross-device event sync, web-based editing, recurring events, Nextcloud Contacts integration, WebCal subscriptions, attendee invites, color coding, event notifications, privacy-focused hosting, and import/export support.
47 Nextcloud Calendar alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application type
Calendar
Origin
Germany
EU
Platforms
Online
Self-Hosted
Nextcloud
Germany
EU
Good alternative?Is Nextcloud Calendar a good alternative to Google Calendar?

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1comment
Nextcloud Calendar vs Google Calendar Comments
Positive comment by Guest · Nov 30, 2019
Free (and open source) alternative. Your data is yours !
1 of 1 comments
Nextcloud Calendar is Free and Open SourceGoogle Calendar is Free Personal and Proprietary
Nextcloud Calendar is Privacy focusedGoogle Calendar is not according to our users
Fantastical
79 likes
Simplify scheduling with natural language input, major platform sync, vibrant color-coded views, personalized writing style recognition, task and conference call integration, and customizable widgets for comprehensive calendar management.
90 Fantastical alternatives
Cost / License
Freemium
Proprietary
Application type
Calendar
Origin
United States
Platforms
Mac
Windows
iPhone
iPad
Apple Watch
visionOS
United States
+7
Good alternative?Is Fantastical a good alternative to Google Calendar?

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1comment
Fantastical vs Google Calendar Comments
Negative comment by Guest · Oct 18, 2023
It's not a calendar service - you need to bring your own calendar
1 of 1 comments
Fantastical is Freemium and ProprietaryGoogle Calendar is Free Personal and Proprietary
Fantastical is Privacy focusedGoogle Calendar is not according to our users
KashCal
9 likes
A privacy-first calendar that works offline and looks beautiful. Connect to iCloud — or don't. Your schedule, your choice.
57 KashCal alternatives
Cost / License
Free
Open Source
Application type
Calendar
Platforms
Android
F-Droid
Good alternative?Is KashCal a good alternative to Google Calendar?
Apple Calendar
147 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.
134 Apple Calendar alternatives
Cost / License
Free
Proprietary
Application type
Calendar
Origin
United States
Platforms
Mac
iPhone
iPad
iCloud
United States
+1
Good alternative?Is Apple Calendar a good alternative to Google Calendar?
AnyTask
7 likes
Create and sort tasks using colors, icons, subtasks, and photos. Set reminders, use recurring schedules, and sync with iCloud across iPhone, iPad, and Mac. Share any list in real time via iCloud, collaborate without accounts, and access Calendar view or widgets.
Cost / License
Freemium
Proprietary
Application typeApplication types
Todo List Manager
Task Management
Origin
United States
Platforms
iPhone
iPad
United States
Good alternative?Is AnyTask a good alternative to Google Calendar?
Notion Calendar
18 likes
Experience a fully integrated calendar with Notion, syncing events from Google Calendar, offering built-in scheduling, time zone support, and the ability to connect multiple accounts. Manage all events, personal and work, with a modern design, light and dark modes, and Lock Screen support for iOS 17.
138 Notion Calendar alternatives
Cost / License
Freemium
Proprietary
Application typeApplication types
Calendar
Appointment Scheduler
Origin
United States
Platforms
Mac
Windows
Online
Android
iPhone
United States
+9
Good alternative?Is Notion Calendar a good alternative to Google Calendar?

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1comment
Notion Calendar vs Google Calendar Comments
Negative comment by Guest · Jul 20, 2026
Notion is too complicated and requires a great deal of user input in general to become functional. Most templates are locked behind a paywall and Notion requires you to trust a third party with your data rather than being able to host a local file and sync. This is not a viable alternative and should not be at the top of the list by any stretch of the imagination. I'm honestly unclear why it's even listed.
1 of 1 comments
Notion Calendar is Freemium and ProprietaryGoogle Calendar is Free Personal and Proprietary

12 of 161 Google Calendar alternatives

The Best Free Google Calendar AlternativesTop Calendar Apps like Google Calendar

Alternatives list

Etar

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Etar vs Google Calendar Comments

Fossify Calendar

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Fossify Calendar vs Google Calendar Comments

Proton Calendar

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Proton Calendar vs Google Calendar Comments

Calendar Lock PEA

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Tuta Calendar

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Tuta Calendar vs Google Calendar Comments

Simple Calendar

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Alerts

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Simple Calendar vs Google Calendar Comments

Nextcloud Calendar

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Nextcloud Calendar vs Google Calendar Comments

Fantastical

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Fantastical vs Google Calendar Comments

KashCal

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Apple Calendar

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AnyTask

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Notion Calendar

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Notion Calendar vs Google Calendar Comments