Spike AlternativesEmail Clients and other similar apps like Spike

Spike is described as 'Transform your inbox into a collaborative workspace with integrated chat-like emails, cross-platform compatibility, and robust task management features' and is a Email Client in the office & productivity category. There are more than 50 alternatives to Spike for a variety of platforms, including iPhone, Windows, Web-based, Android and Mac apps. The best Spike alternative is Microsoft Outlook. It's not free, so if you're looking for a free alternative, you could try Spark Mail or eM Client. Other great apps like Spike are Zulip, Mailspring, Delta Chat and Mailbox.org.

Spike iconSpike
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Transform your inbox into a collaborative workspace with integrated chat-like emails, cross-platform compatibility, and...

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Spike alternatives page was last updated May 6, 2025
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  1. Mailbird icon

    Mailbird

    Sponsored

    Streamline your email experience by managing multiple accounts, integrating apps like Slack and Google Calendar, and using AI-driven features like drafting and spam prevention. Customize your workspace with themes, notifications, and tools for improved productivity and a modern interface.

    64 Mailbird alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    Mailbird screenshot 1
  2. 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.

    126 Microsoft Outlook alternatives

    License model

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Android Wear
    Outlook 365 on Windows

    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 VS Spike

     
    Comments about Microsoft Outlook as an Alternative to Spike
    Darren de Lima
    Negative Jan 29, 2021
    2

    Traditional email client; not a chat email client like Spike, Unibox, DeltaChat

    actuallyjupiter
    Negative Dec 7, 2021
    1

    It has no chat-styled interface

    Spike Icon
    Microsoft Outlook icon

    • Microsoft Outlook is the most popular Web-based, Windows, Android & Mac alternative to Spike.

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

    • Microsoft Outlook is Paid and ProprietarySpike is Freemium and Proprietary
  4. Zulip icon

    Zulip

     210 likes
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    Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.

    225 Zulip alternatives

    License model

    • Free Personal • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • Self-Hosted
    • F-Droid
    Zulip screenshot 1

    Top Zulip Features

    1.  Threaded Conversations
    2.  Team Collaboration
    3.  Support for Hotkeys
    4.  Community-based
    5.  Support for MarkDown
    6.  Syntax Highlighting
    7.  Chat Bot
    8.  Secure Chat
    9.  Third party integrations
    10.  Integrated File Sharing
    11. GitHub icon  GitHub Integration
    12.  Integrated Search

    Zulip VS Spike

     
    Comments about Zulip as an Alternative to Spike
    actuallyjupiter
    Negative Dec 7, 2021
    2

    Different to normal mail, but certainly not bubbled and chat-styled like Spike. DeltaChat is the best alternative

    Spike Icon
    Zulip icon

    • Zulip is the most popular Linux & Self-Hosted alternative to Spike.

    • Zulip is the most popular Open Source & free alternative to Spike.

    • Zulip is Free Personal and Open SourceSpike is Freemium and Proprietary
  5. Ad
    Screenshot
    Mailbird icon
    Mailbird

    Streamline your email experience by managing multiple accounts, integrating apps like Slack and Google Calendar, and using AI-driven features like drafting and spam prevention. Customize your workspace with themes, notifications,...

    https://www.getmailbird.com
    Learn More
  6. Spark Mail icon

    Spark Mail

     133 likes
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    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.

    61 Spark Mail alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • UA flagUkraine

    Platforms

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

    Top Spark Mail Features

    1.  Multiple Account support
    2.  Email Scheduling
    3.  Snooze Mail
    4.  Cloud Sync
    5.  Calendar Integration
    6.  Dark Mode
    7.  Email Organizer
    8.  Unified inbox
    9.  Works Offline
    10.  Mail Filtering
    11.  Ad-free
    12. Google Calendar icon  Sync with Google Calendar

    Spark Mail VS Spike

     
  7. eM Client icon

    eM Client

     231 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.

    61 eM Client alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Android
    eM Client: Inbox view

    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 VS Spike

     
    Comments about eM Client as an Alternative to Spike
    Darren de Lima
    Positive Jan 29, 2021
    1

    eM Client is an excellent traditional email client. I use it to stay on top of my emails. It doesn't have a "chat" interface like DeltaChat, Spike, Unibox, or Mailspring, but it's interface is very good.

    Spike Icon
    eM Client icon
    • eM Client is Freemium and ProprietarySpike is also Freemium and Proprietary
  8. Mailspring icon

    Mailspring

     107 likes
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    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.

    42 Mailspring alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Linux
    • Arch Linux
    • Fedora
    • Ubuntu
    Clean design with integrated search and swipe gestures

    Properties

    1.  Customizable
    2.  User friendly
    3.  Support for Themes

    Features

    1.  Unified inbox
    2.  Multiple Account support
    3.  Dark Mode
    4.  Email tracking
    5.  Snooze Mail
    6.  Ad-free
    7.  Built-in translation
    8.  Theme Customization
    9.  IMAP Support
    10.  Extensible by Plugins/Extensions
    11.  Email Organizer
    12.  Keyboard Shortcuts

    Mailspring VS Spike

     
    Comments about Mailspring as an Alternative to Spike
    Darren de Lima
    Positive Jan 29, 2021
    -1

    Mailspring has (arguably) an interface that looks enough like a "chat" client that it could work for you, if you're not satisfied with DeltaChat, Spike or Unibox

    Spike Icon
    Mailspring icon
    • Mailspring is Freemium and Open SourceSpike is Freemium and Proprietary
    • Mailspring is CustomizableSpike is not according to our users
  10. Delta Chat icon

    Delta Chat

     51 likes
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    Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.

    License model

    • Free • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
    • Flathub
    • F-Droid
    Delta Chat screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Decentralized
    2.  Encrypted Email
    3.  IMAP Support
    4.  Multiple languages
    5.  Dark Mode
    6.  End-to-End Encryption
    7.  Ad-free
    8.  Unified inbox
    9.  Self Destructing Messages
    10.  Multiple Account support
    11.  Portable
    12.  OpenPGP

    Delta Chat VS Spike

     
    Comments about Delta Chat as an Alternative to Spike
    actuallyjupiter
    Positive Dec 7, 2021
    0

    The best FOSS alternative to any other chat-styled email clients. I've been hooked ever since I downloaded this application!

    Spike Icon
    Delta Chat icon
    • Delta Chat is Free and Open SourceSpike is Freemium and Proprietary
    • Delta Chat is Decentralized and Privacy focusedSpike is not according to our users
  11. Mailbox.org icon

    Mailbox.org

     66 likes
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    E-mail inbox, online office, cloud storage, and video conferencing. Business or personal plans. From 1 € /month (1.10 USD).

    83 Mailbox.org alternatives

    License model

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    Dashboard online office. Powered by Open-Xchange

    Properties

    1.  Privacy focused

    Features

    1.  Custom Domain
    2.  Encrypted Email
    3.  Built-in Calendar
    4.  Calendar Integration
    5.  Two-factor Authentication
    6.  No Tracking
    7.  Spam Filter
    8.  PGP Encryption
    9.  Dark Mode
    10.  Calendar View
    11.  Ad-free
    12.  GPG Encryption

    Mailbox.org VS Spike

     
  12. Zoho Mail icon

    Zoho Mail

     118 likes
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    Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

    108 Zoho Mail alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • IN flagIndia

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Apple Watch
    • Android Tablet
    All-in-one view

    Properties

    1.  Privacy focused

    Features

    1.  Custom Domain
    2.  Ad-free
    3.  Mail Filtering
    4.  Virtual office
    5.  Two-factor Authentication
    6.  Document Sharing
    7.  Support for Aliases
    8.  Email reminder
    9.  SMTP Support
    10.  Snooze Mail
    11.  POP3 Support
    12.  Integrated Spam Protection

    Zoho Mail VS Spike

     
  13. Apple Mail icon

    Apple Mail

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

    72 Apple Mail alternatives

    License model

    • Free • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • iPhone
    • iPad
    • Online
    • Apple Watch
    Apple Mail screenshot 1

    Properties

    1.  Customizable

    Features

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

    Apple Mail VS Spike

     
  14. Claws Mail icon

    Claws Mail

     102 likes
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    Claws Mail is an email client (and news reader), based on GTK+, featuring

    Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability.

    61 Claws Mail alternatives

    License model

    • Free • Open Source

    Application types

    Platforms

    • Windows
    • Linux
    • BSD
    The main window

    Properties

    1.  Lightweight
    2.  Privacy focused
    3.  Customizable

    Features

    1.  Extensible by Plugins/Extensions
    2.  Multiple Account support
    3.  IMAP Support
    4.  Spam Filter
    5.  Works Offline
    6.  No registration required
    7.  Ad-free
    8.  Dark Mode
    9.  Calendar Integration
    10.  Portable
    11.  GPG Encryption
    12.  Built-in RSS reader

    Claws Mail VS Spike

     
  15. Mailbird icon

    Mailbird

     307 likes
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    Streamline your email experience by managing multiple accounts, integrating apps like Slack and Google Calendar, and using AI-driven features like drafting and spam prevention. Customize your workspace with themes, notifications, and tools for improved productivity and a modern interface.

    64 Mailbird alternatives

    License model

    • Freemium • Proprietary

    Application type

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    Mailbird screenshot 1

    Properties

    1.  Clean design

    Features

    1.  Sync Contacts
    2.  Dark Mode
    3.  Undo send
    4.  Email tracking
    5.  Unified inbox
    6.  GSuite Integration
    7. Slack icon  Slack integration
    8.  Multiple Account support
    9. Asana icon  Asana integration
    10.  Email template editor
    11.  Email Organizer
    12.  Spam Filter

    Mailbird VS Spike

     
  16. Vivaldi Mail icon

    Vivaldi Mail

     33 likes
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    Vivaldi Mail is a free email service with no ads and no strings attached developed by Vivaldi Technologies. It also offers contacts and calendar features, search capabilities, folders management, WEB/POP/IMAP access, 10GB of storage capacity, 20 MB of maximum attachment size...

    100 Vivaldi Mail alternatives

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • NO flagNorway

    Platforms

    • Online
    • Vivaldi
    Mail

    Properties

    1.  Support for Themes

    Features

    1.  IMAP Support
    2.  Ad-free
    3.  POP3 Support
    4.  PGP Encryption
    5.  Email Organizer
    6.  Mail Filtering
    7.  GPG Encryption
    8.  Two-factor Authentication
    9.  Spam Filter
    10.  Calendar View
    11.  Unified inbox
    12.  Calendar Integration

    Vivaldi Mail VS Spike

     
13 of 64 Spike alternatives