Alternatives
Best eM Client alternatives in 2026
eM Client is email, calendar and contacts app for Windows, Mac, iOS and Android. These 9 alternatives come from the same rankings, ordered by editorial score. Connected products carry a small, disclosed lift.
Ranked alternatives
- 1
Thunderbird
Is open source; also runs on Linux. Free, open source and includes calendar and contacts on Windows, Linux and macOS. It has no phone app of its own, and Thunderbird for Android is a separate project.
Best for Free desktop email with calendar and contacts
WindowsmacOSLinuxFreeOpen source
- 2
Spark
One app on iOS, Mac, Android and Windows, with a smart inbox that sorts mail by importance. Its code is closed, and its Premium plan adds the paid features.
Best for One inbox across phone and desktop
iOSmacOSAndroidWindowsFree plan, paid upgrades
- 3
Outlook
Also runs on Web. Microsoft's mail client for Windows and Mac, with calendar, contacts and To Do in one app and a free web version at Outlook.com. Calendar and mail are tied to the mailbox, and desktop features depend on the account and plan.
Best for Microsoft 365 and Outlook.com users
WindowsmacOSiOSAndroidWebFree plan, paid upgrades
- 4
Mailspring
Is open source; also runs on Linux. Open-source GPL-3.0 desktop client for Mac, Windows and Linux, with send later and grammar checking. Its read receipts and link tracking may not suit privacy-minded users, and the Pro plan is $8 per month.
Best for Open-source desktop mail with send later
macOSWindowsLinuxFree plan, paid upgradesOpen source
- 5
Mail
Built into Mac and iPhone at no cost and needs no download on Apple devices. It has no Windows or Android version, so it is limited to Apple users.
Best for Email on Apple devices with no extra app
macOSiOSFree
- 6
Canary Mail
An email client for Mac, Windows, iOS and Android with a unified inbox, one-click unsubscribe, snooze, read receipts and a calendar. The free plan covers the core inbox, and AI Copilot and PGP sit behind paid plans at $36 and $100 a year.
Best for Individuals who juggle several mailboxes
macOSWindowsiOSAndroidFree plan, paid upgrades
- 7
Proton Mail
Is open source; also runs on Web, Linux. Encrypted email from a Swiss company, with apps for iOS, Android and desktop, an open-source web client and a free plan. It is a mail service as much as a client, so mailboxes live on Proton's servers rather than with a provider you pick.
Best for Encrypted email for private mail between Proton users
WebiOSAndroidmacOSWindowsLinuxFree plan, paid upgradesOpen source
- 8
Mailbird
Combines Gmail, Outlook, Exchange and IMAP accounts in one Windows or Mac workspace, free to download. It has no phone app on its site and is closed source.
Best for Several work and personal accounts on a desktop
WindowsmacOSFree plan, paid upgrades
- 9
Mimestream
A native Mac client for Gmail that uses the Gmail API directly, with several Google accounts in one window and Google Calendar invites. It is Gmail-only and subscription-only, at $49.99 a year or $4.99 a month after a 14-day trial.
Best for Mac users with Gmail accounts who want a native app
macOSSubscription
Narrow the alternatives
Open-source alternatives to eM Client
eM Client alternatives for Linux
Compare eM Client head to head
- eM Clientversus
Thunderbird - eM Clientversus
Spark - eM Clientversus
Outlook - eM ClientversusMailspring
- eM Clientversus
Mail - eM Clientversus
Mailbird
Or build your own comparison table with eM Client and up to three other products.
About eM Client alternatives
- What is the best alternative to eM Client?
- On listme.name the highest-scored alternative is Thunderbird, followed by Spark. The right choice depends on price, platform and whether you need open source.
- Is there a free alternative to eM Client?
- Yes. Free options include Thunderbird, Spark, Outlook.
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