OnMail AlternativesOnly apps categorised as Email Clients

The best Email Client alternative to OnMail is Proton Mail, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to OnMail and 12 are Email Clients so hopefully you can find a suitable replacement. Other interesting Email Client alternatives to OnMail are Gmail, Microsoft Outlook, Zoho Mail and Mailbox.org.

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OnMail alternatives are mainly WebMail Providers but may also be Email Clients or Calendar Apps.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of OnMail.
OnMail iconOnMail
  4
  • Freemium • Proprietary
  • ...

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OnMail alternatives page was last updated May 12, 2022
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  1. Proton Mail icon
    Proton Mail icon

    Proton Mail

     871 likes
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    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.

    94 Proton Mail alternatives
    Proton Mail screenshot 1

    License model

    • Freemium • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Tor
    Proton Mail screenshot 1
    Proton Mail screenshot 2
    +6
    Proton Mail screenshot 3

    Properties

    1.  Privacy focused
    2.  Ad-free
    3.  No Tracking
    4.  Security & Privacy

    Features

    1.  End-to-End Encryption
    2.  Encrypted Email
    3.  Two-factor Authentication
    4.  Mobile friendly
    5.  Custom Domain
    6.  Dark Mode
    7.  PGP Encryption
    8.  Anonymous Email
    9.  Filters
    10.  Self Destructing Messages
    11.  IMAP Support
    12.  Integrated Spam Protection
    13.  Custom Link Alias
    14.  Calendar Integration
    15.  Support for Aliases
    16.  Email Organizer
    Proton Mail iconOnMail Icon

    Proton Mail VS OnMail

    Is Proton Mail a good alternative to OnMail?
     

    • Proton Mail is the most popular Web-based, Windows, Android & Mac alternative to OnMail.

    • Proton Mail is the most popular Open Source & free alternative to OnMail.

    • Proton Mail is Freemium and Open SourceOnMail is Freemium and Proprietary
    • Proton Mail is Privacy focusedOnMail is not according to our users
  2. Gmail icon
    Gmail icon

    Gmail

     3183 likes
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    Gmail offers robust spam blocking, undo send, Google Chat for collaboration, Spaces for organizing projects, Google Meet video calls, Smart Reply, threaded conversations, and swift notifications, seamlessly integrating with Google Workspace for a comprehensive email experience.

    74 Gmail alternatives
    Gmail screenshot 1
    Gmail screenshot 2
    +5
    Gmail screenshot 3

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    • Android Wear
    • Android TV
    • Software as a Service (SaaS)

    Properties

    1.  Works Offline

    Features

    1.  Integrated Search
    2.  Integrated Chat
    3.  Multiple Account support
    4.  Mail Server
    5.  Basic html mode
    6.  Custom Backgrounds
    7.  Email Organizer
    8.  Outlook integration
    9.  Integrated Spam Protection
    10.  Canned responses
    11.  Emoji Text support
    12.  Mail Filtering
    13.  Email deliverability
    14.  Threaded Conversations
    15.  Unified inbox
    16.  IFTTT Integration
    17.  Passkey Support
    18.  Web-Based
    19.  Yahoo Integration
    20.  IMAP Support
    Gmail iconOnMail Icon

    Gmail VS OnMail

    Is Gmail a good alternative to OnMail?
     

    • Gmail is the most popular SaaS & Android Tablet alternative to OnMail.

    • Gmail is Free and ProprietaryOnMail is Freemium and Proprietary
  4. Microsoft Outlook icon
    Microsoft Outlook icon

    Microsoft Outlook

     394 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.

    136 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

    Properties

    1.  Works Offline

    Features

    1.  Exchange
    2.  Native application
    3.  Email Organizer
    4.  Contacts
    5.  Built-in Calendar
    6.  Calendar Integration
    7.  Calendar View
    8.  Support for Aliases
    9.  Multiple Account support
    10.  Cloud Sync
    11.  Unified inbox
    12.  Dark Mode
    13.  Support for @mentions
    14.  Onenote Desktop Integration
    15.  Address book integration
    16.  Onedrive integration
    17.  Custom rules
    18.  Smart attachments
    19.  Exchange Integration
    20.  ICloud Integration
    21.  Box.com integration
    Microsoft Outlook iconOnMail Icon

    Microsoft Outlook VS OnMail

    Is Microsoft Outlook a good alternative to OnMail?
     

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

    • Microsoft Outlook is Paid and ProprietaryOnMail is Freemium and Proprietary
  5. Ad
    Screenshot
    Proton Mail icon

    Proton Mail

    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any devi...

    https://proton.me
    Learn More
  6. Zoho Mail icon
    Zoho Mail icon

    Zoho Mail

     115 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.

    102 Zoho Mail alternatives
    All-in-one view

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Apple Watch
    • Android Tablet
    All your tasks in a single place
    Take your bookmarks anywhere you go
    +3
    Instant chat for instant communication

    Properties

    1.  Ad-free
    2.  Privacy focused

    Features

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

    Zoho Mail VS OnMail

    Is Zoho Mail a good alternative to OnMail?
     
  7. Mailbox.org icon
    Mailbox.org icon

    Mailbox.org

     59 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).

    75 Mailbox.org alternatives
    Dashboard online office. Powered by Open-Xchange

    License model

    Application types

    Platforms

    • Online
    Unlimited video conference. Up to 10 participants. OpenTalk.
    Webmail
    +5
    Online office shortcut menu. Powered by Open-Xchange.

    Properties

    1.  Privacy focused
    2.  No Tracking

    Features

    1.  Custom Domain
    2.  Encrypted Email
    3.  IMAP Support
    4.  Built-in Calendar
    5.  File Storage
    6.  Contacts
    7.  PGP Encryption
    8.  Calendar Integration
    9.  Spam Filter
    10.  Two-factor Authentication
    11.  Automatic Backup
    12.  Real time collaboration
    13.  Support for Aliases
    14.  Cloud Sync
    15.  Self Destructing Messages
    16.  CalDAV Support
    17.  CardDAV Support
    18.  Support for SFTP
    19.  Supports XMPP
    Mailbox.org iconOnMail Icon

    Mailbox.org VS OnMail

    Is Mailbox.org a good alternative to OnMail?
     
  8. Vivaldi Mail icon
    Vivaldi Mail icon

    Vivaldi Mail

     32 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...

    92 Vivaldi Mail alternatives
    Mail

    License model

    • Free • Proprietary

    Application types

    Platforms

    • Online
    • Vivaldi
    Calendar
    New Message
    +2
    Manage Folders

    Properties

    1.  Ad-free

    Features

    1.  PGP Encryption
    2.  Mail Filtering
    3.  Dark Mode
    4.  Calendar Integration
    5.  IMAP Support
    6.  POP3 Support
    7.  Encrypted Email
    8.  Web-Based
    Vivaldi Mail iconOnMail Icon

    Vivaldi Mail VS OnMail

    Is Vivaldi Mail a good alternative to OnMail?
     
  10. BlueMail icon
    BlueMail icon

    BlueMail

     30 likes
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    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.

    30 BlueMail alternatives
    BlueMail screenshot 1
    BlueMail screenshot 2
    +2
    BlueMail screenshot 3

    License model

    • Free Personal • Proprietary

    Application type

    Platforms

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

    Properties

    1.  Ad-free
    2.  Lightweight

    Features

    1.  Unified inbox
    2.  IMAP Support
    3.  GDPR Compliant
    4.  Multiple Account support
    5.  Calendar Integration
    6.  POP3 Support
    BlueMail iconOnMail Icon

    BlueMail VS OnMail

    Is BlueMail a good alternative to OnMail?
     
  11. Superhuman icon
    Superhuman icon

    Superhuman

     3 likes
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    The fastest email experience ever made.

    55 Superhuman alternatives
    Superhuman screenshot 1
    Superhuman screenshot 2
    +3
    Superhuman screenshot 3

    License model

    Application type

    Platforms

    • Mac
    • Online
    • iPhone
    • iPad

    Superhuman Features

    1.  Inbox Management
    Superhuman iconOnMail Icon

    Superhuman VS OnMail

    Is Superhuman a good alternative to OnMail?
     
  12. HEY Email icon
    HEY Email icon

    HEY Email

     9 likes
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    Hey is a new hosted email service launched by the makers of Basecamp , which aims to organize your email inbox. Since they don’t sell ads, or invade your privacy, they charge $99/year for HEY

    95 HEY Email alternatives
    HEY Email screenshot 1
    HEY Email screenshot 2
    +5
    HEY Email screenshot 3

    License model

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft

    Properties

    1.  Ad-free
    2.  Privacy focused
    3.  Works Offline

    Features

    1.  Dark Mode
    2.  Two-factor Authentication
    3.  Support for Aliases
    4.  Email Organizer
    5.  Integrated Spam Protection
    6.  Threaded Conversations
    7.  Send later
    HEY Email iconOnMail Icon

    HEY Email VS OnMail

    Is HEY Email a good alternative to OnMail?
     
  13. Newton Mail icon
    Newton Mail icon

    Newton Mail

     50 likes
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    Newton is a fully featured mail client available for Android, iOS, macOS and Windows. Works for watch too. It's based on cloud so you can connect it to any account and get fast search, push notifications, read receipts (PREMIUM), etc.

    43 Newton Mail alternatives
    Newton Mail screenshot 1

    License model

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Android Wear
    • Snap
    Newton Mail screenshot 1
    Newton Mail screenshot 2
    +9
    Newton Mail screenshot 3

    Newton Mail Features

    1.  Automatic Backup
    2.  Cloud Sync
    3.  Threaded Conversations
    4.  Email tracking
    5.  Focused Inbox
    6.  Subscription based
    7.  Exchange
    8.  Real-time pushing
    9.  Multiple languages
    10.  Salesforce integration
    Newton Mail iconOnMail Icon

    Newton Mail VS OnMail

    Is Newton Mail a good alternative to OnMail?
     
  14. Swisscows.email icon
    Swisscows.email icon

    Swisscows.email

     5 likes
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    Swisscows.email is another product of Swisscows AG. This product offers you secure email traffic. With Swisscows.email you can send your emails encrypted so that absolutely no one can read them. The service is comparable to a letter that is protected from prying eyes in an...

    57 Swisscows.email alternatives
    Swisscows.email screenshot 1

    License model

    Application types

    Platforms

    • Online

    Properties

    1.  Privacy focused

    Features

    1.  Encrypted Email
    Swisscows.email screenshot 1
    Swisscows.email screenshot 2
    +6
    Swisscows.email screenshot 3
    Swisscows.email iconOnMail Icon

    Swisscows.email VS OnMail

    Is Swisscows.email a good alternative to OnMail?
     
  15. Kerjamail icon
    Kerjamail icon

    Kerjamail

     Like this app
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    The world's first email hosting that makes communication inside your team easier with fewer meetings. Host your professional email on a secure, privacy-guaranteed, and ad-free email hosting service built-in with features like email marketing services can do.

    86 Kerjamail alternatives
    Kerjamail screenshot 1

    License model

    Application types

    Platforms

    • Online
    • Software as a Service (SaaS)
    Kerjamail screenshot 1
    Kerjamail screenshot 2
    +1
    Kerjamail screenshot 3
    Kerjamail iconOnMail Icon

    Kerjamail VS OnMail

    Is Kerjamail a good alternative to OnMail?
     
12 of 12 OnMail alternatives