The short answer
Cheapest at 5 seats a month
€20/mo
Mailbutler, Starter plan
- Lowest starting price
- $3 · Canary Mail
- Free plans
- 8 of 22
- Prices published
- 18 of 22
- Sales-led only
- 0
AI email assistants at a glance
Median starting price$20/moHalf start between $8 and $27
Free plan36%77% offer a time-limited trial
Buy online91%Sign up and pay without a sales call
Sales only0%Demo or contact sales to buy
How they charge
Vendors whose domain dates from 2023 or later start at a median $20/mo, 14% above the $17.50 of older ones (4 newer, 12 older, public USD prices).
What you'd pay at 5 seats a month
- Mailbutler Starter€20
- Mailmeteor Starter$29.95
- Serif Lite$30
- Gemini in Gmail (Google Workspace) Starter$35
- Spark Mail Plus$50
- Missive Starter$70
- MailMaestro Email (MailMaestro)$75
- Superhuman Pro$75
- Front Copilot add-on$100
- HeyHelp Pro$100
- Inbox Zero Starter$100
- Gmelius Meli$105
- Shortwave Business$150
- Fyxer Pro$245
- alfred_ Team$250
Computed from each tool's published plans, allowances and overage rates.
Every AI email assistant, side by side
| Tool | Starts at | Usage price | Free plan | How you buy | Checks | Checked |
|---|---|---|---|---|---|---|
 Mailbutler |
€3/mo yearly | – | – | Both | 6/8 | Oct 29, 2026 |
 Mailmeteor |
$5.99/mo | – | Yes | Both | 4/8 | Oct 29, 2026 |
 Serif |
$27/mo yearly | – | – | Both | 7/8 | Oct 29, 2026 |
 Gemini in Gmail (Google Workspace) |
$7/mo | – | – | Both | 4/8 | Oct 29, 2026 |
 Spark Mail |
$8.25/mo yearly | – | Yes | Both | 8/8 | Oct 29, 2026 |
 Missive |
$14/mo yearly | – | – | Both | 6/8 | Oct 29, 2026 |
 MailMaestro |
$12/mo yearly | – | Yes | Both | 7/8 | Oct 29, 2026 |
 Superhuman |
$12/mo yearly | – | Yes | Both | 6/8 | Oct 29, 2026 |
 Front |
$25/mo yearly | $0.05/minute | – | Both | 6/8 | Oct 29, 2026 |
 HeyHelp |
$12/mo yearly | – | – | Both | 4/8 | Oct 29, 2026 |
 Inbox Zero |
$18/mo yearly | – | Yes | Both | 7/8 | Oct 29, 2026 |
 Gmelius |
$19/mo yearly | – | – | Both | 6/8 | Oct 29, 2026 |
 Shortwave |
$30/mo | – | – | Self-serve | 6/8 | Oct 29, 2026 |
 Fyxer |
$37/mo yearly | – | Yes | Both | 7/8 | Oct 29, 2026 |
 alfred_ |
$25/mo yearly | – | – | Both | 7/8 | Oct 29, 2026 |
 Canary Mail |
$3/mo yearly | – | Yes | Self-serve | 7/8 | Oct 29, 2026 |
 Writemail.ai |
$5/mo yearly | – | Yes | Both | 4/8 | Oct 29, 2026 |
 Jace AI |
$20/mo yearly | – | – | Both | 6/8 | Oct 29, 2026 |
 Ellie |
– | – | – | Self-serve | 5/8 | Oct 29, 2026 |
| Hiver | – | – | – | – | 0/8 | Oct 29, 2026 |
 Microsoft Copilot in Outlook |
– | – | – | – | 0/8 | Oct 29, 2026 |
 SaneBox |
– | – | – | Self-serve | 5/8 | Oct 29, 2026 |
The tools
MailbutlerEmail extension for Apple Mail, Gmail and Outlook that adds tracking, templates, mail merge, shared inbox tools, signatures and an AI assistant.€3 /moMailmeteorMailmeteor is a Gmail and Outlook email outreach tool (mail merge, tracking, follow-ups) with an AI email assistant for Gmail.$5.99 /moSerifSerif is an AI platform that handles email and document work, drafting replies in the user's voice and following up on documents, for individuals and small business teams.$27 /moGemini in Gmail (Google Workspace)Google Workspace is a paid business suite that bundles Gmail custom email, Drive, Meet, Chat, Calendar, Docs and Gemini AI features.$7 /moSpark MailSpark is a cross-platform email client from Readdle with a smart inbox, team collaboration, and AI writing, summary and draft features.$8.25 /moMissiveMissive is a shared team inbox for email, SMS and social messages with internal comments, tasks, rules and an AI assistant.$14 /moMailMaestroMaestro Labs sells MailMaestro, an AI assistant inside Outlook and Gmail that drafts, summarizes and labels email, and TeamsMaestro, an AI meeting note taker.$12 /moSuperhumanSuperhuman is a suite of AI apps (Mail, Go, Grammarly, Docs) with an email client that drafts replies, labels and archives mail, sold in Free, Pro, Business and Enterprise tiers.$12 /moFrontFront is a shared inbox and customer operations platform where teams and AI agents handle email, SMS, chat and WhatsApp conversations together.$25 /moHeyHelpAI email assistant that works inside Gmail to sort, label, archive and draft replies in the user's voice.$12 /moInbox ZeroInbox Zero is an AI email assistant for Gmail and Outlook that labels emails, drafts replies in your voice, blocks cold email and bulk unsubscribes.$18 /moGmeliusGmelius adds AI agents and shared inboxes to Gmail and Google Workspace, with an AI assistant called Meli.$19 /moShortwaveShortwave is an AI email client for Gmail with an AI assistant, AI filters, summaries, and team collaboration features.$30 /moFyxerFyxer is an AI assistant that connects to Gmail and Outlook to label email, draft replies in your tone, and record meetings with follow-ups.$37 /moalfred_alfred_ is an AI assistant that reads Gmail and Outlook email and calendars, keeps a list of requests waiting on you, and runs routines on a schedule.$25 /moCanary MailCross-platform email client with AI drafting, summaries and security features that connects to existing Gmail, Outlook, iCloud, Exchange and IMAP accounts.$3 /moWritemail.aiAI email writing tool that drafts new emails and replies from key points, with tone, style and language options, used via a web app, Gmail Chrome extension and desktop apps.$5 /moJace AIJace is an AI email assistant for Gmail and Outlook that drafts replies, labels emails and runs rules and integrations.$20 /moEllieEllie is an AI assistant that auto-drafts email replies in your writing voice inside Gmail and Outlook.QuoteHIHiverQuoteMicrosoft Copilot in OutlookMicrosoft sells Microsoft 365 plans that bundle productivity apps with Copilot, but the supplied pages give no detail on email assistant features.QuoteSaneBoxSaneBox is an email management service that moves unimportant mail out of the inbox into a separate folder and adds follow-up reminders, snooze, digests and AI drafting and summaries.QuoteHow this list is made
Every price is read from the vendor's own pricing page on the date shown and tied to the line it came from. Tools are ordered by what they cost at a typical volume, then by starting price. No one pays to be listed or ranked.