eM Client alternatives: 5 apps ranked by verified data
Common reasons people leave eM Client: free version limited to home use and two accounts, and no Linux version. We ranked 5 alternatives by how directly each one replaces eM Client, then by reviews, real visits and how recently each app's facts were checked against its own website. Microsoft Outlook currently ranks first.
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Show all 5 alternativesThe best eM Client alternative for…
The highest-ranked app in this list for each need.
Best eM Client alternative for most people
Microsoft OutlookThe standard choice if you need full Exchange and Microsoft 365 features.
Best eM Client alternative for a free option
ThunderbirdFree and open source, with calendars and OpenPGP, also on Linux.
Best eM Client alternative for a free plan you can upgrade
MailbirdA Windows and Mac client focused on app integrations and a unified inbox.
Best eM Client alternative for open source
MailspringOpen-source desktop client that also runs on Linux.
Best eM Client alternative for Windows
Microsoft OutlookThe standard choice if you need full Exchange and Microsoft 365 features.
Best eM Client alternative for Linux
ThunderbirdFree and open source, with calendars and OpenPGP, also on Linux.
Best eM Client alternative for iPhone and Android
Microsoft OutlookThe standard choice if you need full Exchange and Microsoft 365 features.
Best eM Client alternative for working in the browser
Microsoft OutlookThe standard choice if you need full Exchange and Microsoft 365 features.
eM Client alternatives: common questions
What is the best alternative to eM Client?
Microsoft Outlook ranks first right now. The standard choice if you need full Exchange and Microsoft 365 features. Thunderbird and Mailbird follow it in our ranking.
Is there a free alternative to eM Client?
Yes. Microsoft Outlook (free plan + paid), Thunderbird (open source), Mailbird (free plan + paid) and Mailspring (free plan + paid) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to eM Client?
Yes: Thunderbird and Mailspring.
Which eM Client alternatives work on Linux?
Thunderbird and Mailspring run on Linux.
Why do people switch from eM Client?
The complaints we hear most: free version limited to home use and two accounts; no Linux version; business licensing is per device.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces eM Client, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.