Spark Mail AlternativesOnly apps categorised as Calendar Apps

Alternatives list

1. 

   

   Thunderbird

    2625 likes

   Cross-platform email client supporting multiple identities, chat, and strong filtering. Extend functionality with add-ons like RSS/Atom feed readers and PGP support.

   99 Thunderbird alternatives

   Cost / License

   • Free
   • Open Source (MPL-2.0)

   Application typeApplication types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Android
   • BSD
   • AppImageHub
   • Snapcraft
   • Flathub
   • PortableApps.com
   • F-Droid
   • Haiku
   • Homebrew
   • Chocolatey
   • OpenAPK

   • United States

   

   

   

   +8

   

   More about Thunderbird  

   

   Good alternative?Is Thunderbird a good alternative to Spark Mail?

    

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   6comments

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   Thunderbird vs Spark Mail Comments

   Top Positive Comment by hra72 · Jul 7, 2024

   Security & Privacy of Spark is questionable: "Data storage and encryption is secured through Google Cloud service." Thunderbird supports OpenPGP & S/MIME email encryption and is still completely free.

   Top Negative Comment by Guest · Mar 11, 2019

   works like an old email client, downloading the message and saving in folders. It doesn't work syncing directly online with gmail labels.

   Positive comment by tcdave · May 12, 2026

   I like Thunderbird as an open source alternative, easy to use

   3 of 6 comments

   

   

   • Thunderbird is Free and Open SourceSpark Mail is Freemium and Proprietary
   • Thunderbird is Customizable and Privacy focusedSpark Mail is not according to our users
2. 

   

   Microsoft Outlook

    405 likes

   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.

   141 Microsoft Outlook alternatives

   Cost / License

   • Paid
   • Proprietary

   Application typeApplication types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Online
   • Android
   • iPhone
   • Android Tablet
   • iPad
   • Apple Watch
   • Android Wear

   • United States

   

   

   

   +7

   

   More about Microsoft Outlook  

   

   Good alternative?Is Microsoft Outlook a good alternative to Spark Mail?

    

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   5comments

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   Microsoft Outlook vs Spark Mail Comments

   Top Positive Comment by Guest · Jun 26, 2017

   Integrates deeply into windows OS and has all the bells and whistles.

   Top Negative Comment by Guest · Sep 3, 2019

   Spark is much more clear and tidy than Outlook. I am waiting so hard for Spark to come out for Windows because Outlook is driving me crazy sometimes.

   Negative comment by Guest · Nov 16, 2019

   its just totally out-dated. configuration a horror. screen-display on small displays (laptops) almost unusable (space for email-text max 10-20%). and since beginning problems with imap (every some weeks big imap-problems).

   3 of 5 comments

   

   

   • Microsoft Outlook is Paid and ProprietarySpark Mail is Freemium and Proprietary
4. 

   

   eM Client

    236 likes

   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.

   69 eM Client alternatives

   Cost / License

   • Freemium
   • Proprietary

   Application typeApplication types

   • Email Client
   • Calendar

   Origin

   • Czechia
   • EU

   Platforms

   • Mac
   • Windows
   • Android

   • Czechia
   • EU

   

   

   

   +5

   

   More about eM Client  

   

   Good alternative?Is eM Client a good alternative to Spark Mail?

    

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   1comment

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   eM Client vs Spark Mail Comments

   Negative comment by Guest · Aug 3, 2018

   Is not a free version of an email client. The fact that you have to pay for more than one email account makes it useless.

   1 of 1 comments

   

   

   • eM Client is Freemium and ProprietarySpark Mail is also Freemium and Proprietary
5. 

   

   Evolution

    212 likes

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

   76 Evolution alternatives

   Cost / License

   • Free
   • Open Source (LGPL-2.1)

   Application typeApplication types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

   • Linux
   • BSD
   • Flathub
   • S/MIME
   • GNOME
   • OpenPGP

   • United States

   

   

   

   +4

   

   More about Evolution  

   

   Good alternative?Is Evolution a good alternative to Spark Mail?

    

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   1comment

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   Evolution vs Spark Mail Comments

   Negative comment by CyCo · Jun 15, 2024

   It is a pain to get working with a business Office 365 account. Very outdated methods for getting started.

   1 of 1 comments

   

   

   • Evolution is Free and Open SourceSpark Mail is Freemium and Proprietary
6. 

   

   Claws Mail

    105 likes

   Email and news client on GTK+ foundation featuring quick performance, extensible plugins, secure protocols, advanced filtering, strong folder and contact management, lightweight design, powerful search, customizable interface, multi-language support, and encryption.

   72 Claws Mail alternatives

   Cost / License

   • Free
   • Open Source

   Application typeApplication types

   • Email Client
   • Calendar

   Platforms

   • Windows
   • Linux
   • BSD

   

   

   More about Claws Mail  

   

   Good alternative?Is Claws Mail a good alternative to Spark Mail?

    

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   2comments

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   Claws Mail vs Spark Mail Comments

   Negative comment by CyCo · Jun 15, 2024

   The 90s called, they want their design back

   Positive comment by Thomas Klinger · May 8, 2022

   It's a little bit old fashioned, but ok, it works.

   2 of 2 comments

   

   

   • Claws Mail is Free and Open SourceSpark Mail is Freemium and Proprietary
   • Claws Mail is Lightweight, Customizable and Privacy focusedSpark Mail is not according to our users
8. 

   

   Canary Mail

    29 likes

   Secure email app for Mac, iPhone, Android and Windows with AI Copilot, PGP encryption, read receipts and one unified inbox.

   72 Canary Mail alternatives

   Cost / License

   • Freemium
   • Proprietary

   Application type

   • Email Client

   Origin

   • Singapore

   Platforms

   • Mac
   • Windows
   • Android
   • iPhone
   • iPad
   • Apple Watch

   • Singapore

   

   

   

   +9

   

   More about Canary Mail  

   

   Good alternative?Is Canary Mail a good alternative to Spark Mail?

    
9. 

   

   BlueMail

    34 likes

   BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.

   43 BlueMail alternatives

   Cost / License

   • Free Personal
   • Proprietary

   Application typeApplication types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Android
   • iPhone
   • Chrome OS
   • Android Tablet
   • iPad
   • Apple Watch
   • HUAWEI AppGallery

   • United States

   

   

   

   +9

   

   More about BlueMail  

   

   Good alternative?Is BlueMail a good alternative to Spark Mail?

    

   |

   1comment

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   BlueMail vs Spark Mail Comments

   Negative comment by byronhawkins · May 1, 2022

   BlueMail is built as an entire Chrome browser instance, using a separate OS process for every message window, making it massively heavy on CPU and memory usage. Normally I had to wait more than a minute for each message to display. It was always at least half an hour late to notify new messages. A software development team with even minimal skills would never build an app so poorly. The design is crippled from top to bottom. I recommend avoiding BlueMail as if it were malware.

   1 of 1 comments

   

   

   • BlueMail is Free Personal and ProprietarySpark Mail is Freemium and Proprietary
   • BlueMail is Lightweight and Privacy focusedSpark Mail is not according to our users
10. 

    

    OfficeMail

     Like

    OfficeMail Pro, an email client app using ActiveSync is not only a secure and safe email client but also an app reinforcing a various convenience aspect. It is a product that has been significantly improved and implemented plenty of features like the shared mailbox and calendars...

    Cost / License

    • Paid
    • Proprietary

    Application typeApplication types

    • Calendar
    • Email Client

    Origin

    • United States

    Platforms

    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad

    • United States

    

    

    

    +3

    

    More about OfficeMail  

    

    Good alternative?Is OfficeMail a good alternative to Spark Mail?

     
11. 

    

    Taskbox - Mail

     6 likes

    Your inbox is already a task list - make it a great one. Taskbox allows you to manage your tasks and todos where they already are -- your inbox -- without forwarding or cutting and pasting them to another app.

    Cost / License

    • Paid
    • Proprietary

    Application type

    • Email Client

    Origin

    • Germany
    • EU

    Platforms

    • iPhone

    • Germany
    • EU

    

    

    

    More about Taskbox - Mail  

    

    Good alternative?Is Taskbox - Mail a good alternative to Spark Mail?

     
12. 

    

    Flectar Mail

     3 likes

    Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.

    Cost / License

    • Free
    • Open Source (AGPL-3.0)

    Application typeApplication types

    • Email Client
    • Calendar

    Origin

    • Spain
    • EU

    Platforms

    • Mac
    • Windows
    • Linux

    • Spain
    • EU

    

    

    

    +9

    

    More about Flectar Mail  

    

    Good alternative?Is Flectar Mail a good alternative to Spark Mail?

     
13. 

    

    Koma-Mail

     4 likes

    Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive but, of course, also on your desktop.

    67 Koma-Mail alternatives

    Cost / License

    • Free
    • Proprietary

    Application typeApplication types

    • Email Client
    • Calendar

    Origin

    • Germany
    • EU

    Alerts

    • Discontinued

    Platforms

    • Windows

    • Germany
    • EU

    

    

    

    +7

    

    More about Koma-Mail  

    

    Good alternative?Is Koma-Mail a good alternative to Spark Mail?

     
14. 

    

    kurrier

     1 like

    Kurrier is a modern, self-hosted workspace for email, calendar, contacts and storage.

    Cost / License

    • Free
    • Open Source

    Application type

    • Calendar

    Platforms

    • Self-Hosted

    

    

    

    +1

    

    More about kurrier  

    

    Good alternative?Is kurrier a good alternative to Spark Mail?