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K-9 Mail Alternatives for iPhone

K-9 Mail is not available for iPhone but there are plenty of alternatives with similar functionality. The best iPhone alternative is Microsoft Office Outlook. It's not free, so if you're looking for a free alternative, you could try Spark Mail or Delta Chat. If that doesn't suit you, our users have ranked more than 25 alternatives to K-9 Mail and 14 are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to K-9 Mail are Apple Mail, Airmail, BlueMail and Canary Mail.

K-9 Mail alternatives are mainly Email Clients but may also be Calendar Apps or Encrypted Chat Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of K-9 Mail.
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K-9 Mail iconK-9 Mail
  279
  • Android
  • Android Tablet
  • F-Droid

K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address...

Learn more about K-9 Mail
  1. Microsoft Office Outlook icon

    Microsoft Office Outlook

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    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • Windows Phone
    • iPad
    • Apple Watch
    • Android Wear
    134 alternatives to Microsoft Office Outlook 

    Microsoft Outlook, part of the Microsoft Office Suite (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

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    Features
    1.  Email OrganizerMicrosoft Office Outlook allows you to take control of your inbox by filtering and control tools.
    2.  Calendar IntegrationMicrosoft Office Outlook lets you sync your tasks and events with your calendar application.
    3.  Unified inboxView e-mails (or similar) from all accounts in one unified view with Microsoft Office Outlook.
    4.  Multiple Account supportMicrosoft Office Outlook support multiple accounts without the need to logout and login
    5.  Dark ModeMicrosoft Office Outlook supports dark mode for comfortable usage in low light conditions.
    6.  Email SchedulingYou can schedule a marketing, sales, or personal email for a time in the future with Microsoft Office Outlook.
    Outlook 365 on Windows
    Outlook for Mac 2016
    Outlook for Android
    Microsoft Office Outlook vs K-9 Mail opinions
    This alternative is disputed. Microsoft Office Outlook is still a legitimate alternative to K-9 Mail, but it might have issues that some users think are important.
    Guest

    Microsoft Office Outlook has more vulnerabilities and so far, seems more of a memory hogger on my device than K-9 Mail. Thank you, K-9 Mail!

    Negative comment• ago
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    3
  2. Spark Mail icon

    Spark Mail

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    • Mac
    • Android
    • iPhone
    • iPad
    • Apple Watch
    58 alternatives to Spark Mail 

    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.

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    Features
    1.  Multiple Account supportSpark Mail support multiple accounts without the need to logout and login
    2.  Email SchedulingYou can schedule a marketing, sales, or personal email for a time in the future with Spark Mail.
    3.  Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
    4.  Email OrganizerSpark Mail allows you to take control of your inbox by filtering and control tools.
    5.  Calendar IntegrationSpark Mail lets you sync your tasks and events with your calendar application.
    6.  Dark ModeSpark Mail supports dark mode for comfortable usage in low light conditions.
    Screenshot
    Screenshot
  4. Delta Chat icon

    Delta Chat

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    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • FLATHUB
    • F-Droid
    51 alternatives to Delta Chat 

    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.

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    Features
    1.  DecentralizedDelta Chat is based on a decentralized infrastructure with no single entity controlling it.
    Screenshot
    Screenshot
  5. Apple Mail icon

    Apple Mail

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    • Mac
    • iPhone
    • iPad
    81 alternatives to Apple Mail 

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

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    Features
    1.  Email OrganizerApple Mail allows you to take control of your inbox by filtering and control tools.
    Screenshot
    Screenshot
  6. Airmail icon

    Airmail

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    • Mac
    • iPhone
    • iPad
    • Apple Watch
    70 alternatives to Airmail 

    Airmail is a lightweight and lightning fast mail client for Mac.

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    Features
    1.  Multiple Account supportAirmail support multiple accounts without the need to logout and login
    2.  LightweightAirmail consumes less device resources compared to similar apps.
    Screenshot
  8. BlueMail icon

    BlueMail

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    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Apple Watch
    26 alternatives to BlueMail 

    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.

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    Features
    1.  Unified inboxView e-mails (or similar) from all accounts in one unified view with BlueMail.
    2.  Ad-freeBlueMail doesn't contain any form of external advertising.
    3.  Calendar IntegrationBlueMail lets you sync your tasks and events with your calendar application.
    Screenshot
    Screenshot
    BlueMail vs K-9 Mail opinions
    Some users think BlueMail is a great alternative to K-9 Mail, some don't.
  9. Canary Mail icon

    Canary Mail

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    • Mac
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    62 alternatives to Canary Mail 

    Canary is an exciting new email client for Mac that offers a full set of powerful features with one key difference - your emails are not stored on a 3rd party server.

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    Features
    1.  End-to-End EncryptionCanary Mail has E2E Encryption, for entire or parts of the app.
    2.  PGP EncryptionCanary Mail supports PGP, an encryption system used for sending encrypted emails and files.
      Screenshot
      Screenshot
    • TypeApp icon

      TypeApp

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      • Mac
      • Windows
      • Linux
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Android Wear
      • Kindle Fire
      61 alternatives to TypeApp 

      TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts.

       Suggest and vote on features
      Features
      1.  Unified inboxView e-mails (or similar) from all accounts in one unified view with TypeApp.
      2.  Multiple Account supportTypeApp support multiple accounts without the need to logout and login
      Screenshot
      Screenshot
    • myMail icon

      myMail

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      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Apple Watch
      24 alternatives to myMail 

      myMail is the smart email app for managing all your accounts on iOS and Android.

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      Features
      1.  Mail FilteringmyMail classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
      2.  Multiple Account supportmyMail support multiple accounts without the need to logout and login
      Screenshot
      Screenshot
    • Email - Edison Mail icon

      Email - Edison Mail

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      • Android
      • iPhone
      14 alternatives to Email - Edison Mail 

      Email by Edison (formerly Email by EasilyDo) is a brand new, elegantly designed, universal mail app to manage unlimited mail accounts from different providers including Gmail, Yahoo Mail, AOL Mail, Hotmail, Outlook, Exchange, IMAP, Alto, iCloud and more.

       Suggest and vote on features
      Features
      1.  Multiple Account supportEmail - Edison Mail support multiple accounts without the need to logout and login
      2.  Ad-freeEmail - Edison Mail doesn't contain any form of external advertising.
      3.  Email OrganizerEmail - Edison Mail allows you to take control of your inbox by filtering and control tools.
      Screenshot
      Screenshot
    Showing 10 of 14 alternatives
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