Etar AlternativesCalendar Apps like Etar

Etar is described as 'Material design open source calendar for Android' and is a popular Calendar app in the office & productivity category. There are more than 50 alternatives to Etar for a variety of platforms, including Android, iPhone, Web-based, Android Tablet and iPad apps. The best Etar alternative is Tuta Mail, which is both free and Open Source. Other great apps like Etar are Google Calendar, Proton Calendar, Tuta Calendar and Fossify Calendar.

filter to find the best alternatives

Etar alternatives are mainly Calendar Apps but may also be Todo List Managers or WebMail Providers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Etar.
Etar iconEtar
  76
  • ...

Material design open source calendar for Android.

More about Etar
Etar alternatives page was last updated Jan 14, 2025
  1. Tuta Mail icon
     467 likes

    Offers comprehensive encryption for email, calendar, and contacts with zero personal info required. Built on open source, install via Play Store, F-Droid, or APK, with Tor and VPN support. Both free and paid plans; utilizes quantum-resistant encryption ensuring privacy-focused, anonymous usage.

    95 Tuta Mail alternatives
    Mail View

    License model

    • FreemiumOpen Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Flathub
    • F-Droid

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Encrypted Email
    2.  End-to-End Encryption
    3.  Dark Mode
    4.  Custom Domain
    5.  Encrypted calendar
    6.  Contacts
    7.  No Tracking
    8.  Integrated File Sharing
    9.  Multiple Account support
    10.  Spam Filter
    11.  Ad-free
    12.  Email Organizer
    Tuta Mail iconEtar Icon

    Tuta Mail VS Etar

    Is Tuta Mail a good alternative to Etar?
     
    • Tuta Mail is the most popular Web-based, Windows, Android & Mac alternative to Etar.

    • Tuta Mail is the most popular Open Source & free alternative to Etar.

    • Tuta Mail is Freemium and Open SourceEtar is Free and Open Source
    • Tuta Mail is Privacy focused and LightweightEtar is not according to our users
  2. Google Calendar icon
     936 likes

    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.

    147 Google Calendar alternatives
    Google Calendar screenshot 1

    License model

    • FreeProprietary

    Application type

    Platforms

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

    Google Calendar Features

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

    Google Calendar VS Etar

    Is Google Calendar a good alternative to Etar?
     
    • Google Calendar is the most popular Android Tablet alternative to Etar.

    • Google Calendar is Free and ProprietaryEtar is Free and Open Source
  3. Proton Calendar icon
     70 likes

    Your calendar is a record of your life. Proton Calendar helps keep it private.

    35 Proton Calendar alternatives
    Proton Calendar screenshot 1

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • Tor

    Properties

    1.  Privacy focused

    Features

    1.  End-to-End Encryption
    2.  Cloud Sync
    3.  Two-factor Authentication
    4.  Reminders
    5.  Dark Mode
    6.  Ad-free
    7.  No Tracking
    8.  Calendar Integration
    9. Google Calendar icon  Sync with Google Calendar
    10.  Calendar View
    11. Zoom icon  Zoom integration
    12.  Push Notifications
    Proton Calendar iconEtar Icon

    Proton Calendar VS Etar

    Is Proton Calendar a good alternative to Etar?
     
  4. Tuta Calendar icon
     23 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 Mai...

    31 Tuta Calendar alternatives
    Tuta Calendar screenshot 1

    License model

    • FreemiumOpen Source

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid

    Properties

    1.  Privacy focused

    Features

    1.  Ad-free
    2.  Dark Mode
    3.  Calendar View
    4.  No Tracking
    5.  Two-factor Authentication
    6.  End-to-End Encryption
    7.  Pomodoro Timer
    8.  Auto Responder
    9.  Cloud Sync
    10.  Reminders
    11. Google Calendar icon  Sync with Google Calendar
    12.  Encrypted calendar
    Tuta Calendar iconEtar Icon

    Tuta Calendar VS Etar

    Is Tuta Calendar a good alternative to Etar?
     
  5. Fossify Calendar icon
     27 likes

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

    50 Fossify Calendar alternatives
    Fossify Calendar screenshot 1
    Fossify Calendar screenshot 2
    +5
    Fossify Calendar screenshot 3

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Android
    • F-Droid
    • Android Tablet

    Properties

    1.  Privacy focused
    2.  Lightweight
    3.  Support for Themes

    Features

    1.  Ad-free
    2.  No registration required
    3.  No Tracking
    4.  Works Offline
    5.  Calendar View
    6.  Dark Mode
    7.  Reminders
    8. Google Calendar icon  Sync with Google Calendar
    9.  Multiple Account support
    10.  Calendar Integration
    11.  Material design
    12. Nextcloud icon  Sync with Nextcloud
    Fossify Calendar iconEtar Icon

    Fossify Calendar VS Etar

    Is Fossify Calendar a good alternative to Etar?
     
    Comments about Fossify Calendar as an Alternative to Etar
     
    Guest

    No registration feature is good

    Positive commentNov 24, 2024
    0
    Etar Icon
    Fossify Calendar icon
    • Fossify Calendar is Free and Open SourceEtar is also Free and Open Source
    • Fossify Calendar is Privacy focused and LightweightEtar is not according to our users
  6. Simple Calendar icon
     50 likes

    A simple calendar with optional CalDAV synchronization. You can easily create recurring events and setup reminders, it can also display week numbers.

    98 Simple Calendar alternatives
    Simple Calendar screenshot 1
    Simple Calendar screenshot 2
    +2
    Simple Calendar screenshot 3

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Android
    • Android Tablet

    Simple Calendar Features

    1.  Dark Mode
    2.  Works Offline
    3.  Reminders
    4.  WebDAV Support
    5.  Notifications
    6.  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 iconEtar Icon

    Simple Calendar VS Etar

    Is Simple Calendar a good alternative to Etar?
     
    Comments about Simple Calendar as an Alternative to Etar
     
    Third Opinion

    Simply worked out of the box, including import/export :)

    Positive commentApr 12, 2022
    0
    Etar Icon
    Simple Calendar icon
    • Simple Calendar is Freemium and ProprietaryEtar is Free and Open Source
  7. Notion Calendar icon
     11 likes

    All of your commitments, now in one place. Meet the beautifully designed, fully integrated calendar for your work and life.

    81 Notion Calendar alternatives
    Notion Calendar screenshot 1

    License model

    • FreeProprietary

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • Online

    Top Notion Calendar Features

    1. Google Calendar icon  Sync with Google Calendar
    2.  Dark Mode
    3.  Calendar Integration
    4.  Calendar View
    5.  Adjusts timezone automatically
    6.  Support for Keyboard Shortcuts
    7.  Shared Calendar
    8.  Lockscreen Widget
    9.  Appointment Scheduling
    10. Zoom icon  Zoom integration
    11. Notion icon  Notion Integration
    12.  Scheduling
    Notion Calendar iconEtar Icon

    Notion Calendar VS Etar

    Is Notion Calendar a good alternative to Etar?
     
  8. OurCal icon
     5 likes

    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.

    54 OurCal alternatives
    OurCal screenshot 1
    OurCal screenshot 2
    +3
    OurCal screenshot 3

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Android
    • iPhone

    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 iconEtar Icon

    OurCal VS Etar

    Is OurCal a good alternative to Etar?
     
  9. Rainlendar icon
     116 likes

    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.

    77 Rainlendar alternatives
    Events and Tasks

    License model

    • FreemiumProprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux

    Rainlendar Features

    1.  Reminders
    2.  Recurring Tasks
    3.  Ad-free
    4.  No registration required
    5. Google Calendar icon  Sync with Google Calendar
    6. Apple Calendar icon  iCal integration
    7.  Multiple languages
    8.  Sync with Fantastical
    Rainlendar iconEtar Icon

    Rainlendar VS Etar

    Is Rainlendar a good alternative to Etar?
     
  10. Nextcloud Calendar icon
     26 likes

    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.

    32 Nextcloud Calendar alternatives
    Nextcloud Calendar screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Online
    • Self-Hosted

    Properties

    1.  Privacy focused

    Features

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

    Nextcloud Calendar VS Etar

    Is Nextcloud Calendar a good alternative to Etar?
     
  11. Calendar Lock PEA icon
     16 likes

    Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.

    67 Calendar Lock PEA alternatives
    week view

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux

    Properties

    1.  Privacy focused

    Features

    1.  Password encryption
    2.  Authenticated encryption
    3.  Encrypted Notes
    Calendar Lock PEA iconEtar Icon

    Calendar Lock PEA VS Etar

    Is Calendar Lock PEA a good alternative to Etar?
     
  12. Apple Calendar icon
     141 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.

    93 Apple Calendar alternatives
    Apple Calendar screenshot 1

    License model

    • FreeProprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    • iCloud

    Apple Calendar Features

    1.  Web-Based
    2.  Sync with iCloud
    3.  Week Planner
    4.  Scheduling
    Apple Calendar iconEtar Icon

    Apple Calendar VS Etar

    Is Apple Calendar a good alternative to Etar?
     
12 of 50 Etar alternatives