Scheduling and Calendar Apps

All devices today come with some sort of calendar or scheduling software, but they might not have all the features you need to organize your life the way you want to. Here you find all alternatives to your default schedule. In short, the best calendar apps available.

Whether you look for an app to organize your work agenda or your family life, want a personal or sharable calendar, you will find it here. Read the app descriptions and user reviews to find a calendar app that meets your demands and have the features you need.

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  1. Thunderbird icon
    Thunderbird icon

    Thunderbird

     2395 likes

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

    88 Thunderbird alternatives
    Thunderbird screenshot 1

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • BSD
    • AppImageHub
    • Snapcraft
    • Flathub
    • PortableApps.com
    • Haiku
    • Homebrew
    • Chocolatey
    • F-Droid
    Thunderbird screenshot 1
    Thunderbird screenshot 2
    +8
    Thunderbird screenshot 3

    Properties

    1.  Extensible by Plugins/Extensions
    2.  Works Offline
    3.  Ad-free

    Features

    1.  Multiple Account support
    2.  IMAP Support
    3.  Calendar Integration
    4.  SMTP Support
    5.  Email Organizer
    6.  Add-ons
    7.  Built-in RSS reader
    8.  POP3 Support
    9.  Graphical User Interface
    10.  Dark Mode
    11.  Intuitive
    12.  Google Calendar integration
    13.  OpenPGP
    14.  Portable
    15.  Gmail integration
    16.  Integrated Web Browser
  2. Proton Mail icon
    Proton Mail icon

    Proton Mail

     871 likes

    Secure Swiss-based email with end-to-end encryption and zero third-party access. Available across devices, offering a free version to promote privacy.

    94 Proton Mail alternatives
    Proton Mail screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Tor
    Proton Mail screenshot 1
    Proton Mail screenshot 2
    +6
    Proton Mail screenshot 3

    Properties

    1.  Privacy focused
    2.  Ad-free
    3.  No Tracking

    Features

    1.  End-to-End Encryption
    2.  Encrypted Email
    3.  Two-factor Authentication
    4.  Mobile friendly
    5.  Custom Domain
    6.  Dark Mode
    7.  PGP Encryption
    8.  Anonymous Email
    9.  Filters
    10.  Self Destructing Messages
    11.  IMAP Support
    12.  Calendar Integration
    13.  Integrated Spam Protection
    14.  Custom Link Alias
    15.  Support for Multiple Users
    16.  Multiple languages
  4. Tuta Mail icon
    Tuta Mail icon

    Tuta Mail

     459 likes

    End-to-end encrypted app for email, calendar, and contacts, requiring no personal data, with open source code and quantum-resistant security.

    94 Tuta Mail alternatives
    Mail View

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Flathub
    • F-Droid
    Calendar View
    Contacts View
    +6
    Search feature

    Properties

    1.  Privacy focused
    2.  No Tracking
    3.  Lightweight

    Features

    1.  Encrypted Email
    2.  End-to-End Encryption
    3.  Dark Mode
    4.  Custom Domain
    5.  Encrypted calendar
    6.  Contacts
    7.  Integrated File Sharing
    8.  Multiple Account support
    9.  Email Organizer
    10.  Auto Responder
    11.  Recurring Tasks
    12.  Encrypted Connection
    13.  Sync Contacts
    14.  Filters
    15.  Mobile friendly
    16.  Unlimited Custom Domains
  5. Google Calendar icon
    Google Calendar icon

    Google Calendar

     934 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
    Google Calendar screenshot 1

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Sunbird
    • Google Chrome
    Google Calendar screenshot 1
    Google Calendar screenshot 2
    +4
    Google Calendar screenshot 3

    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
  6. Todoist icon
    Todoist icon

    Todoist

     421 likes

    Manages tasks across all platforms with advanced language recognition. It integrates with 60+ tools, and offers templates for various projects.

    92 Todoist alternatives
    Webapp

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • AppImageHub
    • Apple Watch
    • Snapcraft
    • Google Chrome
    • Flathub
    • Microsoft Outlook
    • Android Wear
    • Safari
    • Gmail
    • Mozilla Firefox
    Themes
    Chrome extension
    +28
    ChromeApp

    Properties

    1.  Ad-free

    Features

    1.  Natural Language Processing
    2.  Task assignments
    3.  Subtasks
    4.  IFTTT Integration
    5.  Gamification
    6.  Recurring Tasks
    7.  Calendar View
    8.  Reminders
    9.  Kanban Board
    10.  Hierarchical Structure
    11.  Google Calendar integration
    12.  Zapier integration
    13.  Notifications
    14.  Favorites
    15.  Task Tracking
    16.  Alexa integration
    17.  Dropbox integration
    18.  Slack integration
  7. Ad
  8. CryptPad icon
    CryptPad icon

    CryptPad

     148 likes

    CryptPad is a private-by-design alternative to popular office tools and cloud services. All the content stored on CryptPad is encrypted before being sent, which means nobody can access your data unless you give them the keys.

    68 CryptPad alternatives
    Instance homepage

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Self-Hosted
    • Software as a Service (SaaS)
    Markdown slides app
    Code/Markdown app
    +7
    Whiteboard app

    Properties

    1.  No registration required
    2.  Privacy focused
    3.  Ad-free
    4.  No Tracking

    Features

    1.  End-to-End Encryption
    2.  Real time collaboration
    3.  Collaborative writing
    4.  Kanban Board
    5.  Privacy
    6.  Encrypted Notes
    7.  Document Sharing
    8.  Direct file uploading
    9.  Cloud Sync
    10.  Support for MarkDown
    11.  Multiple languages
  9. Fossify Calendar icon
    Fossify Calendar icon

    Fossify Calendar

     26 likes

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

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

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • F-Droid
    • Android Tablet

    Properties

    1.  Ad-free
    2.  No registration required
    3.  No Tracking
    4.  Privacy focused
    5.  Works Offline
    6.  Lightweight

    Features

    1.  Calendar View
    2.  Dark Mode
    3.  Reminders
    4.  Material design
    5.  Sync with Nextcloud
  10. Tuta Calendar icon
    Tuta Calendar icon

    Tuta Calendar

     21 likes

    Organize events with encrypted privacy, zero-knowledge and no tracking. Features include multi-device sync, multiple views, and offline support.

    29 Tuta Calendar alternatives
    Tuta Calendar screenshot 1

    License model

    • Freemium • Open Source

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    Tuta Calendar screenshot 1
    Tuta Calendar screenshot 2
    +4
    Tuta Calendar screenshot 3

    Properties

    1.  Ad-free
    2.  No Tracking
    3.  Privacy focused

    Features

    1.  Dark Mode
    2.  Encrypted calendar
    3.  Calendar View
    4.  Two-factor Authentication
    5.  End-to-End Encryption
    6.  Pomodoro Timer
    7.  Auto Responder
    8.  GDPR Compliant
    9.  Shared Calendar
    10.  Calendar Sync
    11.  Quantum-Safe Encryption
    12.  Periodic Reminders
    13.  Custom Domain
    14.  Unlimited Custom Domains
  12. Asana icon
    Asana icon

    Asana

     492 likes

    Work management platform for teams to focus on goals, projects, and tasks, available on mobile, integrating with web, offering offline use and notifications.

    85 Asana alternatives
    Asana screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Asana screenshot 1
    Asana screenshot 2
    +6
    Mobile view

    Top Asana Features

    1.  Subtasks
    2.  Recurring Tasks
    3.  Kanban Board
    4.  Dependency Tracking
    5.  Assign and Track Tasks
    6.  Online collaboration
    7.  Calendar View
    8.  Sync with Google Calendar
    9.  Goal Tracking
    10.  Task Time Tracking
    11.  Real time collaboration
    12.  IFTTT Integration
    13.  Team management
    14.  Planning
    15.  Timeline
    16.  Built-in AI Assistant
    17.  Mobile friendly
    18.  Custom data fields
    19.  Task Tracking
  13. Microsoft Outlook icon
    Microsoft Outlook icon

    Microsoft Outlook

     394 likes

    Manage emails, calendars, contacts, and tasks with an intuitive interface. Features smart inbox, file management, and third-party app integration.

    136 Microsoft Outlook alternatives
    Outlook 365 on Windows

    License model

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Android Wear
    Outlook for Mac 2016
    Microsoft Outlook screenshot 2
    +7
    Microsoft Outlook screenshot 3

    Properties

    1.  Works Offline

    Features

    1.  Exchange
    2.  Email Organizer
    3.  Native application
    4.  Contacts
    5.  Built-in Calendar
    6.  Calendar Integration
    7.  Calendar View
    8.  Support for Aliases
    9.  Multiple Account support
    10.  Cloud Sync
    11.  Unified inbox
    12.  Dark Mode
    13.  Onenote Desktop Integration
    14.  Address book integration
    15.  Onedrive integration
    16.  Custom rules
    17.  Smart attachments
    18.  Exchange Integration
  14. Evolution icon
    Evolution icon

    Evolution

     199 likes

    Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.

    77 Evolution alternatives
    Mail

    License model

    • Free • Open Source

    Application types

    Platforms

    • Linux
    • BSD
    • Flathub
    • S/MIME
    • GNOME
    • OpenPGP
    EMail Inbox
    Calendar - Weekly View
    +4
    Inbox with preview

    Properties

    1.  Ad-free
    2.  Extensible by Plugins/Extensions
    3.  Works Offline

    Features

    1.  Calendar Integration
    2.  Contacts
    3.  CalDAV Support
    4.  Calendar View
    5.  Personal Information Manager (PIM)
    6.  Spam Filter
    7.  Multiple Account support
    8.  Sync with Google Calendar
    9.  IMAP Support
    10.  POP3 Support
    11.  Dark Mode
    12.  Encrypted Email
    13.  Exchange
    14.  CardDAV Support
    15.  Integrated Spam Protection
    16.  Built-in RSS reader
  15. Proton Calendar icon
    Proton Calendar icon

    Proton Calendar

     62 likes

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

    31 Proton Calendar alternatives
    Proton Calendar screenshot 1

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • Tor
    Proton Calendar screenshot 1
    Proton Calendar screenshot 2
    +2
    Proton Calendar screenshot 3

    Properties

    1.  Privacy focused
    2.  Ad-free
    3.  No Tracking

    Features

    1.  End-to-End Encryption
    2.  Cloud Sync
    3.  Two-factor Authentication
    4.  Reminders
    5.  Dark Mode
    6.  Calendar Integration
    7.  Integrated Search
  16. Betterbird icon
    Betterbird icon

    Betterbird

     40 likes

    Betterbird is a drop-in replacement for Mozilla Thunderbird. Betterbird has more features and more fixed bugs than Thunderbird.

    28 Betterbird alternatives
    Calendar view with custom thundirbird dark theme

    License model

    • Free • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Chocolatey
    System tray (systray) for Linux
    System tray (systray) for Linux
    +8
    Account colours

    Properties

    1.  Privacy focused
    2.  Lightweight
    3.  Extensible by Plugins/Extensions
    4.  Works Offline
    5.  Ad-free
    6.  Support for Themes

    Features

    1.  Multiple Account support
    2.  Unified inbox
    3.  Portable
    4.  Specific for 64-Bit
    5.  Personal Information Manager (PIM)
    6.  POP3 Support
    7.  Built-in RSS reader
    8.  IMAP Support
    9.  SMTP Support
    10.  S/MIME Support
    11.  Gmail integration
    12.  Add-ons
  17. Spark Mail icon
    Spark Mail icon

    Spark Mail

     124 likes

    E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.

    62 Spark Mail alternatives
    Spark Mail screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    • iPhone
    • iPad
    • Apple Watch
    Spark Mail screenshot 1
    Spark Mail screenshot 2
    +3
    Spark Mail screenshot 3

    Properties

    1.  Works Offline

    Features

    1.  Multiple Account support
    2.  Email Scheduling
    3.  Snooze Mail
    4.  Cloud Sync
    5.  Sorting by folder
    6.  Dark Mode
    7.  Calendar Integration
    8.  Email Organizer
    9.  Unified inbox
    10.  Mail Filtering
    11.  Exchange
    12.  Postpone email reception
  18. Etar icon
    Etar icon

    Etar

     75 likes

    Material design open source calendar for Android.

    50 Etar alternatives
    Etar screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Etar screenshot 1
    Etar screenshot 2
    +8
    Etar screenshot 3

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Ad-free
    4.  No Tracking
    5.  Works Offline

    Features

    1.  Material design
    2.  Dark Mode
    3.  Multiple Account support
    4.  GPS Location Tracking