Open Source Spark Mail AlternativesTop Email Clients and other similar apps like Spark Mail

Alternatives list

1. 

   

   Thunderbird

    2563 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.

   88 Thunderbird alternatives

   Cost / License

   • Free
   • Open Source (MPL-2.0)

   Application types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

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

   

   

   

   +8

   

   More about Thunderbird  

   

   Is Thunderbird a good alternative to Spark Mail?

    

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   5comments

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   Thunderbird vs Spark Mail Comments

    

   Top Positive Comment

   Guest

   Apr 25, 2018

   1

   There is NO Spark Version for Windows. That's why Thunderbird is the Best Alternative IMO.

   Review by a new / low-activity user.

   Top Negative Comment

   Guest

   Mar 11, 2019

   10

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

   Review by a new / low-activity user.

   hra72

   Positive comment•Jul 7, 2024

   0

   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.

   Show more comments

   3 of 5 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. 

   

   K-9 Mail

    370 likes

   K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.

   42 K-9 Mail alternatives

   Cost / License

   • Free
   • Open Source (Apache-2.0)

   Application type

   • Email Client

   Origin

   • International

   Platforms

   • Android
   • Android Tablet
   • F-Droid

   

   

   

   +4

   

   More about K-9 Mail  

   

   Is K-9 Mail a good alternative to Spark Mail?

    
4. 

   

   Evolution

    208 likes

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

   70 Evolution alternatives

   Cost / License

   • Free
   • Open Source (LGPL-2.1)

   Application types

   • Email Client
   • Calendar

   Origin

   • United States

   Platforms

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

   

   

   

   +4

   

   More about Evolution  

   

   Is Evolution a good alternative to Spark Mail?

    

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   1comment

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   Evolution vs Spark Mail Comments

    

   CyCo

   Negative comment•Jun 15, 2024

   1

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

   

   

   • Evolution is Free and Open SourceSpark Mail is Freemium and Proprietary
5. 

   

   FairEmail

    89 likes

   Open-source, privacy-focused email client offering features such as encryption via OpenPGP and S/MIME, unlimited accounts, a unified inbox, customizable settings, and reformatted emails to prevent phishing. Supports two-way synchronization and provides Pro features for additional customization.

   43 FairEmail alternatives

   Cost / License

   • Freemium
   • Open Source (GPL-3.0)

   Application type

   • Email Client

   Origin

   • Netherlands
   • EU

   Platforms

   • Android
   • Android Tablet
   • F-Droid

   

   

   

   +5

   

   More about FairEmail  

   

   Is FairEmail a good alternative to Spark Mail?

    
6. 

   

   Mailspring

    114 likes

   Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.

   44 Mailspring alternatives

   Cost / License

   • Freemium
   • Open Source (GPL-3.0)

   Application type

   • Email Client

   Origin

   • United States

   Platforms

   • Mac
   • Windows
   • Linux
   • Arch Linux
   • Fedora
   • Ubuntu

   

   

   

   +1

   

   More about Mailspring  

   

   Is Mailspring a good alternative to Spark Mail?

    

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   3comments

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   Mailspring vs Spark Mail Comments

    

   Thomas Klinger

   Comment•May 8, 2022

   0

   I tested it, generally it is ok, but it sometimes does not show new arrivals at the top of the list, even though the counter increases. However, good mail client, which does not need any clumsy registrations somewhere.

   Review by a new / low-activity user.

   Guest

   Positive comment•Feb 28, 2020

   1

   As far as my usage history, the best alternative for spark mail is Mailspring in terms of UI and UX. Though it lacks some features I use Mailspring as my daily driver.

   Review by a new / low-activity user.

   Guest

   Positive comment•Mar 13, 2018

   -1

   It's the most similar, with the features most inline. It even looks the same in appearance, and all the menus and shortcut keys match.

   Review by a new / low-activity user.

   

   

   • Mailspring is Freemium and Open SourceSpark Mail is Freemium and Proprietary
   • Mailspring is CustomizableSpark Mail is not according to our users
7. 

   

   Claws Mail

    106 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.

   Cost / License

   • Free
   • Open Source

   Application types

   • Email Client
   • Calendar

   Platforms

   • Windows
   • Linux
   • BSD

   

   

   More about Claws Mail  

   

   Is Claws Mail a good alternative to Spark Mail?

    

   |

   2comments

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   Claws Mail vs Spark Mail Comments

    

   CyCo

   Negative comment•Jun 15, 2024

   1

   The 90s called, they want their design back

   Thomas Klinger

   Positive comment•May 8, 2022

   -2

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

   Review by a new / low-activity user.

   

   

   • 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
9. 

   

   Wino Mail

    8 likes

   Wino is a lightweight native mail client for Windows 10/11. It is still in active development. Main motivation for this project is to replace Mail & Calendar for Windows with modern Windows design without using web technologies for speed.

   22 Wino Mail alternatives

   Cost / License

   • Freemium
   • Open Source (GPL-3.0)

   Application type

   • Email Client

   Origin

   • Türkiye

   Platforms

   • Windows

   

   

   

   +2

   

   More about Wino Mail  

   

   Is Wino Mail a good alternative to Spark Mail?

    
10. 

    

    LucaMail

     9 likes

    LucaMail is an open source, cross-platform email client. LucaMail is developed to provide cross-platform alternative to Email Clients that are really exists. LucaMail focuses on modern technologies as well as maintaining a user-friendly UI.

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Email Client

    Origin

    • India

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux

    

    

    

    +5

    

    More about LucaMail  

    

    Is LucaMail a good alternative to Spark Mail?

     
11. 

    

    Ltt.rs

     3 likes

    No-frills, easy to use, easy to maintain Email client for Android based on the JSON Meta Application Protocol (JMAP).

    Cost / License

    • Free
    • Open Source (Apache-2.0)

    Application type

    • Email Client

    Origin

    • Germany
    • EU

    Platforms

    • Android
    • F-Droid

    

    

    

    +2

    

    More about Ltt.rs  

    

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12. 

    

    Librem Mail

     3 likes

    End-to-end encrypted email used by nearly everybody already.

    Cost / License

    • Paid
    • Open Source

    Application type

    • Email Client

    Origin

    • United States

    Platforms

    • Android
    • Android Tablet

    

    

    

    +1

    

    More about Librem Mail  

    

    Is Librem Mail a good alternative to Spark Mail?

     
13. 

    

    Nylas Mail Lives

     3 likes

    Nylas Mail Lives is a fork of Nylas Mail that fixes many longstanding issues, improves the client experience, and is committed to publish new releases.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    • Email Client

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted

    

    More about Nylas Mail Lives  

    

    Is Nylas Mail Lives a good alternative to Spark Mail?

     
14. 

    

    Columba

     6 likes

    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.

    57 Columba alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    • Email Client

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD

    

    

    

    More about Columba  

    

    Is Columba a good alternative to Spark Mail?