Best Demi Alternatives in 2026
Updated
20 apps from AI email assistants ranked against Demi on the same published basis.
- 1Demi vs Mailbutler Smart Assistant
- 2Demi vs Perplexity
- 3Demi vs Spike
- 4Demi vs Superhuman Go
- 5Demi vs Mailtwine
- 6Demi vs OpenMailBot
- 7Demi vs Spark +AI
- 8Demi vs EmailOps
- 9Demi vs Kerna
- 10Demi vs MailMaestro
- 11Demi vs MailWise
- 12Demi vs Needle
- 13Demi vs EmailAgent
- 14Demi vs Metis Mail
- 15Demi vs Replai
- 16Demi vs thread.
- 18Demi vs Shortwave
- 19Demi vs Maylee
- 20Demi vs DispatchMail
- 21Demi vs MailCopilot
Demi alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Mailbutler Smart Assistant | 6.8 | Free plan | $7/mo | Android, Browser, iOS, Linux, Mac, Web, Windows |
| 2 | Perplexity | 6.8 | Free plan | $20/mo | Android, API, iOS, Mac, Web, Windows |
| 3 | Spike | 6.7 | Free plan | $4/mo | Android, iOS, Mac, Web, Windows |
| 4 | Superhuman Go | 6.6 | Free plan | $12/mo | Android, Browser, iOS, Mac, Web, Windows |
| 5 | Mailtwine | 6.5 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 6 | OpenMailBot | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 7 | Spark +AI | 6.5 | Free plan | $10/mo | Android, iOS, Mac, Windows |
| 8 | EmailOps | 6.4 | Free plan | Free | Linux, Mac, Windows |
| 9 | Kerna | 6.4 | Free plan | €12/mo | Mac, Web, Windows |
| 10 | MailMaestro | 6.3 | Free plan | $12/mo | Browser, Web |
| 11 | MailWise | 6.3 | Free plan | £15/mo | Web |
| 12 | Needle | 6.3 | Free plan | Free | Web |
| 13 | EmailAgent | 6.2 | Free plan | Free | Web |
| 14 | Metis Mail | 6.2 | Free plan | $9.58/mo | self-hosted, Web |
| 15 | Replai | 6.2 | Free plan | $6/mo | Web |
| 16 | thread. | 6.2 | Free plan | Free | Browser |
| 18 | Shortwave | 5.6 | No | $30/mo | Android, iOS, Mac, Web, Windows |
| 19 | Maylee | 5.5 | No | $17/mo | Android, iOS, Mac, Web, Windows |
| 20 | DispatchMail | 5.3 | No | — | API, self-hosted, Web |
| 21 | MailCopilot | 5.3 | No | — | Linux, Windows, Mac |
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Questions about Demi alternatives
What is the best alternative to Demi?
Mailbutler Smart Assistant, number 1 in AI email assistants with a score of 6.8 out of 10. The others here: Perplexity, Spike, Superhuman Go and 16 more.
What is the best free alternative to Demi?
Mailbutler Smart Assistant is the best-ranked alternative with a free plan. 15 of the 20 alternatives here publish a free plan on their own pricing pages.
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.