Best AI Email Assistants in 2026
Updated
AI email assistants can support different parts of inbox work, from drafting a reply to summarizing a thread or prompting a follow-up. Compare AI reply drafting, inbox triage, thread summaries, and follow-up actions to see which tasks each option covers. Email platform support matters for fit, while automatic sending distinguishes tools that can take that step from those that leave it to you. The entries are ranked, beginning with Mailbutler Smart Assistant, Spark +AI, and Superhuman Go. Check free-plan availability and the paid-from price alongside those capabilities, then consider which combination matches the email work you want help with.
46ranked
18free plans on this page
$4/molowest paid tier
11 Oct 2026last checked
AI Email Assistants, ranked on how quickly a newcomer can get going.25 of 25 products with recorded free access can be tried for free.
- 1 Mailbutler Smart AssistantPaid from $7/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 2 Spark +AIPaid from $10/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 3 Superhuman GoPaid from $12/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 4 PerplexityPaid from $20/mo
- Free to practise on: yes
- Well documented: yes
- Runs where you work: yes
- 5 SerifPaid from $30/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 6 FyxerPaid from $22.50/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 7 MailMaestroPaid from $12/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 8 MailWisePaid from £15/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 9 MaillifierFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 10 ShortwavePaid from $30/mo
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 11 SpikePaid from $4/mo
- Free to practise on: yes
- Free trial: no
- Well documented: yes
- Runs where you work: yes
- 12 KernaPaid from €12/mo
- Free to practise on: yes
- Well documented: yes
- Runs where you work: yes
- 13 OpenMailBotFree plan
- Free to practise on: yes
- Well documented: yes
- Runs where you work: yes
- 14 Mailtwine
- Free to practise on: yes
- Well documented: no
- Runs where you work: yes
- 15 Metis MailPaid from $9.58/mo
- Free to practise on: yes
- Well documented: yes
- Runs where you work: no
- 16 DragPaid from $12/mo
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 17 Ellie
- Free trial: yes
- Well documented: yes
- Runs where you work: no
- 18 EmailAgentFree plan
- Free to practise on: yes
- Well documented: yes
- Runs where you work: no
- 19 MorningZeroPaid from $15/mo
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 20 DemiPaid from $25/mo
- Free to practise on: yes
- Well documented: yes
- Runs where you work: no
- 21 EmailOpsFree plan
- Free to practise on: yes
- Free trial: no
- Well documented: yes
- Runs where you work: yes
- 22 Inbox ZeroPaid from $20/mo
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 23 KaiPaid from $20/mo
- Free to practise on: no
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 24 MailCopilotFree plan
- Free to practise on: yes
- Free trial: no
- Well documented: yes
- Runs where you work: yes
- 25 MailFlowPaid from $12/mo
- Free to practise on: yes
- Well documented: yes
- Runs where you work: no
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Inbox triage | AI reply drafting |
|---|---|---|---|---|---|---|---|---|
| 1 | Mailbutler Smart Assistant | 8.0 | Free plan | $7/mo | Yes | 4 /user/mo | Yes | Yes |
| 2 | Spark +AI | 7.7 | Free plan | $10/mo | Yes | 10 /user/mo | Yes | Yes |
| 3 | Superhuman Go | 7.7 | Free plan | $12/mo | Yes | |||
| 4 | Perplexity | 7.6 | Free plan | $20/mo | Yes | |||
| 5 | Serif | 7.6 | Free plan | $30/mo | No | |||
| 6 | Fyxer | 7.5 | Free plan | $22.50/mo | No | 22.5 /user/mo | ||
| 7 | MailMaestro | 7.5 | Free plan | $12/mo | Yes | 12 /user/mo | Yes | Yes |
| 8 | MailWise | 7.4 | Free plan | £15/mo | Yes | Yes | Yes | |
| 9 | Maillifier | 7.3 | Free plan | Free | Yes | Yes | Yes | |
| 10 | Shortwave | 7.1 | $30/mo | Yes | 30 /user/mo | |||
| 11 | Spike | 7.1 | Free plan | $4/mo | Yes | 4 /user/mo | ||
| 12 | Kerna | 7.0 | Free plan | €12/mo | Yes | |||
| 13 | OpenMailBot | 7.0 | Free plan | Free | Yes | Yes | Yes | |
| 14 | Mailtwine | 6.9 | No | Yes | Yes | |||
| 15 | Metis Mail | 6.9 | Free plan | $9.58/mo | Yes | 12 /user/mo | ||
| 16 | Drag | 6.8 | No | $12/mo | No | 12 /user/mo | ||
| 17 | Ellie | 6.8 | Yes | Yes | Yes | |||
| 18 | EmailAgent | 6.8 | Free plan | Free | Yes | Yes | Yes | |
| 19 | MorningZero | 6.8 | No | $15/mo | No | Yes | Yes | |
| 20 | Demi | 6.7 | Free plan | $25/mo | Yes | |||
| 21 | EmailOps | 6.7 | Free plan | Free | Yes | Yes | Yes | |
| 22 | Inbox Zero | 6.7 | No | $20/mo | No | Yes | Yes | |
| 23 | Kai | 6.7 | No | $20/mo | No | 50 /user/mo | Yes | Yes |
| 24 | MailCopilot | 6.7 | Free plan | Free | Yes | |||
| 25 | MailFlow | 6.7 | Free plan | $12/mo | Yes | Yes | Yes |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.