Best Exo Alternatives in 2026
Updated
20 apps from email clients ranked against Exo on the same published basis.
- 1Exo vs Mozilla Thunderbird
- 2Exo vs Zoho Mail
- 3Exo vs Spark Mail
- 4Exo vs eM Client
- 5Exo vs Spike
- 6Exo vs Mailbutler Smart Assistant
- 7Exo vs Mailspring
- 8Exo vs Newton Mail
- 9Exo vs Canary Mail
- 10Exo vs Epistles Mail
- 11Exo vs Edison Mail
- 12Exo vs Airmail
- 13Exo vs PigeonPost
- 14Exo vs Velo
- 15Exo vs Sparrow
- 16Exo vs MailCopilot
- 17Exo vs Dove
- 18Exo vs Saymail
- 19Exo vs FairEmail
- 20Exo vs Franz
Exo alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Mozilla Thunderbird | 9.6 | Free plan | Free | Android, Linux, Mac, Windows |
| 2 | Zoho Mail | 8.4 | Free plan | $0.08/mo | Android, iOS, Linux, Mac, Web, Windows |
| 3 | Spark Mail | 8.2 | Free plan | $8.25/mo | Android, iOS, Mac, Windows |
| 4 | eM Client | 8.2 | Free plan | $3.33/mo | Android, iOS, Mac, Windows |
| 5 | Spike | 8.1 | Free plan | $4/mo | Android, iOS, Mac, Web, Windows |
| 6 | Mailbutler Smart Assistant | 8.1 | Free plan | $7/mo | Android, Browser, iOS, Linux, Mac, Web, Windows |
| 7 | Mailspring | 8.0 | Free plan | Linux, Mac, Windows | |
| 8 | Newton Mail | 8.0 | Free plan | $5/mo | Android, iOS, Mac, Windows |
| 9 | Canary Mail | 8.0 | Free plan | $3/mo | Android, iOS, Mac, Windows |
| 10 | Epistles Mail | 8.0 | Free plan | $2.92/mo | Android, iOS, Linux, Mac, Web, Windows |
| 11 | Edison Mail | 7.8 | Free plan | Android, iOS, Mac, Windows | |
| 12 | Airmail | 7.7 | Free plan | $2.50/mo | iOS, Mac |
| 13 | PigeonPost | 7.7 | Free plan | Free | Linux, Mac, Windows |
| 14 | Velo | 7.7 | Free plan | Free | Linux, Mac, Windows |
| 15 | Sparrow | 7.7 | Free plan | Free | Linux, Mac, Windows |
| 16 | MailCopilot | 7.7 | Free plan | Free | Linux, Mac, Windows |
| 17 | Dove | 7.7 | Free plan | $16.67/mo | Android, iOS, Mac, Web, Windows |
| 18 | Saymail | 7.7 | Free plan | €3.25/mo | Android, iOS, Linux, Mac, Windows |
| 19 | FairEmail | 7.6 | Free plan | Free | Android |
| 20 | Franz | 7.6 | Free plan | Linux, Mac, Windows |
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Questions about Exo alternatives
What is the best alternative to Exo?
Mozilla Thunderbird, number 1 in email clients with a score of 9.6 out of 10. The others here: Zoho Mail, Spark Mail, eM Client and 16 more.
What is the best free alternative to Exo?
Mozilla Thunderbird is the best-ranked alternative with a free plan. 20 of the 20 alternatives here publish a free plan on their own pricing pages.
Is there an open-source alternative to Exo?
Yes: Mozilla Thunderbird.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.