Kontact AlternativesCalendar Apps & Email Clients like Kontact

Kontact is described as 'Personal Information Manager (Mail, Contact, Calendar and more)' and is a Calendar app in the office & productivity category. There are more than 100 alternatives to Kontact for a variety of platforms, including Mac, Windows, iPhone, Android and iPad apps. The best Kontact alternative is Google Calendar, which is free. Other great apps like Kontact are Microsoft Outlook, Fossify Calendar, eM Client and Apple Mail.

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Kontact alternatives are mainly Email Clients but may also be Calendar Apps or Todo List Managers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Kontact.
Kontact iconKontact
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Personal Information Manager (Mail, Contact, Calendar and more).

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Kontact alternatives page was last updated Mar 15, 2025
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  1. Google Calendar icon
    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.

    147 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 icon  IFTTT Integration
    7.  Calendar Integration
    8.  Calendar View
    9.  Dark Mode
    10.  Passkey Support
    Google Calendar iconKontact Icon

    Google Calendar VS Kontact

    Is Google Calendar a good alternative to Kontact?
     

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

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

    • Google Calendar is Free and ProprietaryKontact is Free and Open Source
  2. Microsoft Outlook icon
    Microsoft Outlook icon

    Microsoft Outlook

     397 likes
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    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.

    131 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

    Top Microsoft Outlook Features

    1.  Exchange
    2.  Native application
    3.  Email Organizer
    4.  Calendar Integration
    5.  Calendar View
    6.  Cloud Sync
    7.  Support for @mentions
    8.  Unified inbox
    9.  Multiple Account support
    10.  Works Offline
    11.  Support for Aliases
    12.  Dark Mode
    Microsoft Outlook iconKontact Icon

    Microsoft Outlook VS Kontact

    Is Microsoft Outlook a good alternative to Kontact?
     

    • Microsoft Outlook is the most popular Windows & Mac alternative to Kontact.

    • Microsoft Outlook is the most popular commercial alternative to Kontact.

    • Microsoft Outlook is Paid and ProprietaryKontact is Free and Open Source
  4. Fossify Calendar icon
    Fossify Calendar icon

    Fossify Calendar

     26 likes
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    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

    • Free • Open 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 iconKontact Icon

    Fossify Calendar VS Kontact

    Is Fossify Calendar a good alternative to Kontact?
     

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

    • Fossify Calendar is Free and Open SourceKontact is also Free and Open Source
    • Fossify Calendar is Privacy focused and LightweightKontact is not according to our users
  5. Ad
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    Fantastical icon

    Fantastical

    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 ma...

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  6. eM Client icon
    eM Client icon

    eM Client

     227 likes
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    eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts, notes and chat.

    62 eM Client alternatives
    eM Client: Inbox view

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Android
    eM Client: Calendar - week view
    eM Client: Inbox with Agenda sidebar
    +5
    eM Client: Contacts

    Top eM Client Features

    1.  IMAP Support
    2.  Calendar Integration
    3.  Multiple Account support
    4.  PGP Encryption
    5.  Dark Mode
    6.  Exchange
    7.  Unified inbox
    8.  Cloud Sync
    9.  Email Organizer
    10. Google Calendar icon  Sync with Google Calendar
    11.  Automatic Backup
    12.  CardDAV Support
    eM Client iconKontact Icon

    eM Client VS Kontact

    Is eM Client a good alternative to Kontact?
     
  7. Apple Mail icon
    Apple Mail icon

    Apple Mail

     234 likes
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    There’s big news attached. The best way to manage email on a Mac, according to Apple.

    73 Apple Mail alternatives
    Apple Mail screenshot 1

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    Apple Mail screenshot 1
    Apple Mail screenshot 2

    Apple Mail Features

    1.  Bundled with macOS
    2.  Email Organizer
    3.  Multiple Account support
    4.  Dark Mode
    5.  Spam Filter
    6.  CalDAV Support
    7.  CardDAV Support
    8.  Exchange
    9.  Rich text editing
    10.  Encrypted Email
    Apple Mail iconKontact Icon

    Apple Mail VS Kontact

    Is Apple Mail a good alternative to Kontact?
     
  8. Simple Calendar icon
    Simple Calendar icon

    Simple Calendar

     50 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.

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

    License model

    • Freemium • Proprietary

    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 iconKontact Icon

    Simple Calendar VS Kontact

    Is Simple Calendar a good alternative to Kontact?
     
  10. Fantastical icon
    Fantastical icon

    Fantastical

     67 likes
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    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.

    63 Fantastical alternatives
    Fantastical screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • iPhone
    • iPad
    • Apple Watch
    • visionOS
    Fantastical screenshot 1
    Fantastical screenshot 2
    +7
    Fantastical screenshot 3

    Properties

    1.  Privacy focused

    Features

    1. Google Calendar icon  Sync with Google Calendar
    2.  Pomodoro Timer
    3.  Calendar Integration
    4.  Calendar View
    5.  Dark Mode
    6.  Calendar Sync
    7. Yahoo! Search icon  Yahoo Integration
    8.  Natural Language Processing
    9.  CalDAV Support
    10.  Exchange
    11. iCloud icon  ICloud Integration
    12.  Sits in the MenuBar
    Fantastical iconKontact Icon

    Fantastical VS Kontact

    Is Fantastical a good alternative to Kontact?
     
  11. Google Contacts icon
    Google Contacts icon

    Google Contacts

     67 likes
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    Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.

    50 Google Contacts alternatives
    Google Contacts screenshot 1

    License model

    • Free • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • Android Tablet
    • Android Wear

    Google Contacts Features

    1.  Cloud Sync
    2.  Contacts
    3.  Sync Contacts
    4.  Category Filters
    Google Contacts screenshot 1
    Google Contacts screenshot 2
    +2
    Google Contacts screenshot 3
    Google Contacts iconKontact Icon

    Google Contacts VS Kontact

    Is Google Contacts a good alternative to Kontact?
     
  12. OurCal icon
    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.

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

    License model

    • Freemium • Proprietary

    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 iconKontact Icon

    OurCal VS Kontact

    Is OurCal a good alternative to Kontact?
     
  13. Scheduler - Calendar Widget icon
    Scheduler - Calendar Widget icon

    Scheduler - Calendar Widget

     6 likes
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    This app helps you focus on managing your schedule with essential features.

    56 Scheduler - Calendar Widget alternatives
    Scheduler - Calendar Widget screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • iPhone
    • iPad
    Scheduler - Calendar Widget screenshot 1
    Scheduler - Calendar Widget screenshot 2
    +7
    Scheduler - Calendar Widget screenshot 3

    Properties

    1.  Privacy focused

    Features

    1.  Pomodoro Timer
    2.  Calendar View
    3.  Ad-free
    4.  No registration required
    5.  No Tracking
    6.  Dark Mode
    7.  Scheduling
    8.  Desktop Widget
    9.  iOS widget
    10.  Appointment Scheduling
    Scheduler - Calendar Widget iconKontact Icon

    Scheduler - Calendar Widget VS Kontact

    Is this a good alternative to Kontact?
     
  14. Rainlendar icon
    Rainlendar icon

    Rainlendar

     116 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.

    77 Rainlendar alternatives
    Events and Tasks

    License model

    • Freemium • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Alarms
    Standards based

    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 iconKontact Icon

    Rainlendar VS Kontact

    Is Rainlendar a good alternative to Kontact?
     

    • Rainlendar is the most popular Linux alternative to Kontact.

    • Rainlendar is Freemium and ProprietaryKontact is Free and Open Source
  15. EssentialPIM icon
    EssentialPIM icon

    EssentialPIM

     73 likes
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    The powerful, full-featured Personal Information Manager for Windows offering Email, Synchronization, Portability, Network support, Android and iOS versions.

    182 EssentialPIM alternatives
    EssentialPIM screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Windows
    • Android
    • iPhone
    EssentialPIM screenshot 1
    EssentialPIM screenshot 2
    +9
    EssentialPIM screenshot 3

    EssentialPIM Features

    Features

    1.  Personal Information Manager (PIM)
    2.  Portable
    3. Google Calendar icon  Google Calendar integration
    4.  Cloud Sync
    5.  Integrated Password Manager
    6.  Dark Mode
    7. Gmail icon  Gmail integration
    8.  Google Apps integration
    9. Google Contacts icon  Google contacts integration
    EssentialPIM iconKontact Icon

    EssentialPIM VS Kontact

    Is EssentialPIM a good alternative to Kontact?
     
12 of 113 Kontact alternatives