Best Horde IMP Alternatives in 2026
Updated
20 platforms from email clients ranked against Horde IMP on the same published basis.
- 1Horde IMP vs Mozilla Thunderbird
- 2Horde IMP vs Hiver
- 3Horde IMP vs Front
- 4Horde IMP vs Gmelius
- 5Horde IMP vs Zoho Mail
- 6Horde IMP vs Spark Mail
- 7Horde IMP vs eM Client
- 8Horde IMP vs Mailspring
- 9Horde IMP vs Newton Mail
- 10Horde IMP vs Spike
- 11Horde IMP vs Canary Mail
- 12Horde IMP vs Mailbutler Smart Assistant
- 13Horde IMP vs Airmail
- 14Horde IMP vs Mailpile
- 15Horde IMP vs FairEmail
- 16Horde IMP vs Epistles Mail
- 17Horde IMP vs Velo
- 18Horde IMP vs Dove
- 19Horde IMP vs MailMate
- 20Horde IMP vs KMail
Horde IMP alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Mozilla Thunderbird | 8.3 | Free plan | Free | Android, Linux, Mac, Windows |
| 2 | Hiver | 8.1 | No | $25/mo | API |
| 3 | Front | 8.0 | No | $25/mo | API |
| 4 | Gmelius | 7.8 | No | $19/mo | Android, API, Browser, iOS, Web |
| 5 | Zoho Mail | 7.5 | Free plan | $0.08/mo | Android, iOS, Linux, Mac, Web, Windows |
| 6 | Spark Mail | 7.5 | Free plan | $8.25/mo | Android, iOS, Mac, Windows |
| 7 | eM Client | 7.5 | Free plan | $3.33/mo | Android, iOS, Mac, Windows |
| 8 | Mailspring | 7.4 | Free plan | — | Linux, Mac, Windows |
| 9 | Newton Mail | 7.3 | Free plan | $5/mo | Android, iOS, Mac, Windows |
| 10 | Spike | 7.3 | Free plan | $4/mo | Android, iOS, Mac, Web, Windows |
| 11 | Canary Mail | 7.3 | Free plan | $3/mo | Android, iOS, Mac, Windows |
| 12 | Mailbutler Smart Assistant | 7.3 | Free plan | $7/mo | Android, Browser, iOS, Linux, Mac, Web, Windows |
| 13 | Airmail | 7.2 | Free plan | $2.50/mo | iOS, Mac |
| 14 | Mailpile | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 15 | FairEmail | 7.1 | Free plan | Free | Android |
| 16 | Epistles Mail | 7.1 | Free plan | $2.92/mo | Android, iOS, Linux, Mac, Web, Windows |
| 17 | Velo | 6.9 | Free plan | Free | Windows, Mac, Linux |
| 18 | Dove | 6.9 | Free plan | $16.67/mo | Android, iOS, Mac, Web, Windows |
| 19 | MailMate | 6.9 | Free plan | $10/mo | Mac |
| 20 | KMail | 6.8 | No | — | Linux |
Make your platform an alternative to Horde IMP
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Horde IMP alternatives
What is the best alternative to Horde IMP?
Mozilla Thunderbird, number 1 in email clients with a score of 8.3 out of 10. The others here: Hiver, Front, Gmelius and 16 more.
What is the best free alternative to Horde IMP?
Mozilla Thunderbird is the best-ranked alternative with a free plan. 16 of the 20 alternatives here publish a free plan on their own pricing pages.
Is there an open-source alternative to Horde IMP?
Yes: Mozilla Thunderbird.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.