Head-to-head · AI Email Assistants
Mailbutler Smart Assistant vs Missive
Mailbutler Smart Assistant leads on 2 checks, Missive on 0, and 5 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreMailbutler Smart Assistant · 8.6/10
- Lowest starting priceMailbutler Smart Assistant · $7/user/mo
- Free planonly Mailbutler Smart Assistant
- Free trialboth
- Most featuresMailbutler Smart Assistant · 4 of 5
Mailbutler Smart Assistant scores higher on our rubric for ai email assistants: 8.6 against 8.5 out of 10; our editors rank them #3 and #4.
Mailbutler Smart Assistant offers free plan; Missive doesn't. Mailbutler Smart Assistant is cheaper to start at $7/user/mo against $14/user/mo.
Mailbutler Smart Assistant is the better fit for affordable email productivity across major platforms. Missive is the better fit for teams coordinating email and other shared communications.
- Mailbutler Smart Assistant fits best
Affordable email productivity across major platforms
- Missive fits best
Teams coordinating email and other shared communications
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Side by side
| Feature | Mailbutler Smart Assistant 8.6/10 Visit ↗ | Missive 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.6 | 8.5 |
| Ranking | #3 in AI Email Assistants | #4 in AI Email Assistants |
| Best for | Affordable email productivity across major platforms | Teams coordinating email and other shared communications |
| Pricing model | Free plan + paid | Paid |
| Starting price | $7/user/mo (best) | $14/user/mo |
| Free plan | ✓ (best) | — |
| Free trial | 14 days | 30 days |
| Free trial length | 14 days | 30 days · no card needed |
| Deployment | Cloud, Desktop, Mobile, Browser extension | Cloud, Desktop, Mobile |
| Platforms | Web, Windows, macOS, Linux, iOS, Android, Chrome extension | Web, Windows, macOS, iOS, Android |
| Integrations | 5 integrations | 16 integrations |
| Features Mailbutler Smart Assistant 4/5 · Missive 0/5 | ||
| Inbox triage | ✓ (best) | Not checked yet |
| AI reply drafting | ✓ (best) | Not checked yet |
| Automatic sending | — | Not checked yet |
| Thread summaries | ✓ (best) | Not checked yet |
| Follow-up actions | ✓ (best) | Not checked yet |
| Specs | ||
| Email platforms | Not checked yet | Not checked yet |
| Our review | ||
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| Our verdict | Mailbutler Smart Assistant adds AI drafting, replies, summaries, and task detection to an email productivity toolkit. It is aimed at people who want help composing and organizing email across Apple Mail, Gmail, or Microsoft Outlook,… Read the review → |
Missive brings team and personal inboxes together with email, SMS, and social accounts, giving support, sales, agency, and other business teams a shared place to coordinate communication. Teammates can assign conversations, add internal… Read the review → |
Strengths and trade-offs
Mailbutler Smart Assistant — where it wins
- Drafts keyword-based messages and context-aware replies
- Summarizes email and identifies actionable tasks
- Works with Apple Mail, Gmail, and Microsoft Outlook
Where it doesn't
- Smart Assistant requires Smart or Business after the 14-day trial
- Starter emails carry a visible Mailbutler watermark
- No automatic email sending
Missive — where it wins
- Shared inboxes add assignments, comments, mentions, and collaborative drafting.
- Rules, automations, scheduled sending, and follow-ups support repeatable workflows.
- AI tools, calendar features, integrations, and API access extend email work.
Where it doesn't
- There is no ongoing free plan after the 30-day trial.
- Integrations, automations, analytics, and API access start with Productive.
- SAML and SSO, IP restriction, and advanced reporting require Business.
- Mailbutler Smart Assistant8.6/10 · Free plan · 14-day trial
A broad email toolkit with AI assistance on Smart and Business plans.
Visit MailbutlerFull verdict → - Missive8.5/10 · 30-day trial
Missive combines shared inbox workflows with AI tools, starting at $14 per user monthly when billed annually.
Visit MissiveFull verdict →
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- Mailbutler Smart Assistant vs Spike
All AI email assistants comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update







