Best software · AI tools
10 Best AI Email Assistants of 2026
This list is for busy professionals who spend too much of the day in email and want AI to sort the inbox, draft replies and remind them to follow up. We compared documented features and published prices for 10 AI email assistants, from full email apps with AI built in to assistants that work inside Gmail or Outlook. Scores weigh features at 40%, ease of use at 30% and value at 30%, and prices are the vendors' own US dollar figures where the pricing page showed them in USD.
By the Mojolin research desk · Updated November 9, 2026 · 10 tools compared · Prices checked on vendor pages, latest November 9, 2026
Questions or corrections: editorial@mojolin.com
Mojolin is self-funded How we score
Shortwave is our top pick: its AI agent can search years of mail, run custom AI filters and draft replies that match your writing style, starting at $30 per seat per month. Superhuman remains the speed pick, with Split Inbox, follow-up reminders and an Email Assistant that also works inside Gmail and Outlook. Spark is the strongest value among full email apps, Gemini in Gmail is the natural choice for Google Workspace users, and Fyxer and MailMaestro add AI drafting without asking anyone to switch email clients.
Top picks
Best overall
Shortwave
8.8 / 10
Professionals who want the most capable AI agent inside their email, with search across years of history.
Read the review →Runner-up
Superhuman
8.6 / 10
Executives and sales teams who live in email and want the fastest way through a full inbox.
Read the review →Also great
Gemini in Gmail
8.5 / 10
Teams already on Google Workspace who want AI in the inbox they use today.
Read the review →Comparison table
| # | Tool | Pricing | Score | |
|---|---|---|---|---|
| 1 | Shortwave | Professionals who want the most capable AI agent inside their email, with search across years of history. | Business $30, Premier $45 and Max $120 per seat per month; 14 day free trial | 8.8 |
| 2 | Superhuman | Executives and sales teams who live in email and want the fastest way through a full inbox. | See vendor pricing (USD check pending) | 8.6 |
| 3 | Gemini in Gmail | Teams already on Google Workspace who want AI in the inbox they use today. | Included with Google Workspace plans and Google AI Pro or Ultra. See vendor pricing (USD check pending) | 8.5 |
| 4 |  Spark | Individuals and small teams who want a polished email app with AI at a lower price than premium clients. | Free plan; Plus and Pro paid plans. See vendor pricing (USD check pending) | 8.5 |
| 5 |  Fyxer | Solo operators and client-facing teams who want drafts waiting in their existing Gmail or Outlook inbox. | Free plan; Pro $37 and Team $64 per person per month billed annually ($49 and $99 monthly) | 8.4 |
| 6 |  MailMaestro | Outlook-heavy teams that want an affordable AI writing and triage add-on with enterprise security. | Free plan; Email $12 per seat per month billed annually; MaestroDuo with meeting notes $25 | 8.4 |
| 7 |  Canary Mail | Individuals who want an AI email client on every device at the lowest price. | Free plan; Growth $3 per month billed yearly at $36; Pro+ $10 per month billed yearly; lifetime options | 8.3 |
| 8 |  Cora | Gmail users buried in newsletters and notifications who want only the important mail left in the inbox. | Professional $20 per month billed annually; Unlimited $39 per month billed annually; free trial | 8.3 |
| 9 |  Microsoft 365 Copilot | Companies on Microsoft 365 that want AI in Outlook, Teams and Office under one license. | See vendor pricing (USD check pending) | 8.2 |
| 10 |  Missive | Small teams that share inboxes and want AI help on replies they write together. | Starter $14, Productive $24 and Business $36 per user per month billed yearly; 30 day free trial | 8.2 |
Scoring weights
Every tool gets three editorial scores out of 10, from vendor documentation, product pages and the published price. The overall score is the weighted average below, the same method on every list. Full method
The full ranking
Rank 1 · Best overall
Shortwave
An AI email app with an agent that organizes, searches, schedules and writes across your inbox from a single prompt.
shortwave.com8.8
out of 10
Best for: Professionals who want the most capable AI agent inside their email, with search across years of history.
Shortwave puts an AI agent at the center of the inbox. You can ask it to find a contract from last year, clean out low priority mail, propose meeting times from your calendar or write a reply, and it pulls the right threads into context before it answers. AI filters run a custom prompt on each new email to label, archive, star or delete it, and personalized writing learns your tone, style and even facts about you from the mail you send.
The everyday tools are strong too: automatic summaries on every email, predictive autocomplete, splits, bundles for newsletters, delivery schedules, todos, read statuses and link tracking. The trade-off is price and limits. Business costs $30 per seat per month with a daily AI quota and 3 AI filters, Premier at $45 doubles usage and lifts the search history cap, and Max at $120 is for people who want the most powerful models all day.
Standout feature
An AI agent that can search years of mail and act on it from a single prompt.
Use cases
Founders
Ask the AI to find every open question from investors this month
Outcome: One answer pulled from many threads
Consultants
Set AI filters that file client updates and archive noise
Outcome: An inbox that only shows mail needing a reply
Busy managers
Draft scheduling replies from calendar availability
Outcome: Meetings booked without switching apps
Key features
- AI assistant that searches, organizes, schedules and drafts from a prompt
- AI filters that label, archive, star or delete new mail from a custom prompt
- Personalized AI writing that learns your style from sent emails
- AI search history of 5 years on Business and unlimited on Premier
- Splits, bundles, delivery schedules and one-click unsubscribe
Pros
- AI integrations and MCP connect the assistant to other apps
- Automatic summaries appear at the top of every email
- Apps for iOS, Android, Mac and Windows
Cons
- Starts at $30 per seat, above most rivals
- Business allows only 3 AI filters
- Daily AI usage quota caps heavy use on lower plans
Rank 2 · Runner-up
Superhuman
A fast, keyboard-driven email app with AI triage and drafts, plus an Email Assistant that works inside Gmail and Outlook.
superhuman.com8.6
out of 10
Best for: Executives and sales teams who live in email and want the fastest way through a full inbox.
Superhuman Mail is built for speed: keyboard shortcuts, Split Inbox to pull out messages from your team, VIPs or tools like Google Docs and Asana, and reminders that bring a sent email back if nobody replies in the time you set. AI organizes incoming mail, writes emails that sound like you and can send fully written messages when you allow it. Snippets insert whole emails with attachments and CC rules, and you can share a live view of a thread so colleagues comment without forwarding.
Superhuman now sells Mail as part of a suite with Grammarly, Docs and the Go assistant. The Business plan includes the Mail app and CRM panels for HubSpot, Salesforce and Pipedrive, while Pro adds the Email Assistant that drafts replies, clears clutter and follows up inside Gmail or Outlook. The pricing page we fetched showed euros only, so check the US price before you buy.
Standout feature
Split Inbox and follow-up reminders paired with AI drafts in your own voice.
Use cases
Executives
Split VIP and team mail away from notifications
Outcome: Important messages answered first
Account executives
Check CRM records and set follow-up reminders from the inbox
Outcome: Deals followed up on time
Teams on Gmail or Outlook
Add the Email Assistant without switching clients
Outcome: AI drafts and sorting in the current inbox
Key features
- Split Inbox to separate team, VIP and tool notifications
- Follow-up reminders when a sent email gets no reply
- Share a live view of any email so teammates can comment
- Snippets for reusable phrases, paragraphs and whole emails
- Email Assistant inside Gmail or Outlook that sorts, drafts replies and reminds you to follow up
Pros
- Superhuman says Mail saves 4 hours every week
- Business plan shows HubSpot, Salesforce and Pipedrive data in the inbox
- Plans bundle Grammarly, Docs and the Go assistant
Cons
- The full Mail app sits on the Business plan, not Pro
- USD prices were not shown on the pricing page we fetched
- Keyboard-first design takes time to learn
Rank 3 · Also great
Gemini in Gmail
Google's AI assistant built into Gmail that summarizes threads, drafts and refines emails, organizes mail and finds details.
workspace.google.com8.5
out of 10
Best for: Teams already on Google Workspace who want AI in the inbox they use today.
Gemini in Gmail is the lowest-friction choice for companies on Google Workspace, because it appears in the side panel of the inbox people already use. Google documents five core jobs: summarize long threads into bullet points, draft new emails or refine drafts for tone and clarity, organize mail by deleting or labeling many messages at once, search for details like flight times, and propose meeting times from your calendar. Search can also answer questions using Google Drive files.
Gmail adds AI Overviews in search, proofreading, suggested replies, Smart Compose and nudges that flag emails you may have missed. What it lacks is the proactive triage of dedicated tools: it does not prepare drafts before you open a thread or learn custom sorting rules the way Shortwave or Fyxer do. Gemini comes with Workspace subscriptions or a Google AI Pro or Ultra plan for personal accounts; the Workspace page we fetched showed prices in local currency.
Standout feature
Built into Gmail, so Workspace teams get AI without changing tools.
Use cases
Workspace teams
Summarize long internal threads before a meeting
Outcome: Key points read in seconds
Travelers
Ask Gemini for flight times and booking details
Outcome: Details found without manual search
Managers
Draft a status email from a prompt
Outcome: A first draft ready to edit
Key features
- Summaries of long email threads in concise bullet points
- Drafts new emails and refines existing drafts for tone and clarity
- Organizes mail on request, such as deleting many emails or adding labels
- Finds details like flight times or package tracking
- Proposes meeting times from Google Calendar availability
Pros
- Nothing new to install for Workspace users
- Search answers questions from Gmail and Google Drive
- Smart Reply, Smart Compose and nudges for emails that need a reply
Cons
- Works only in Gmail
- No auto-drafting of replies before you open a thread
- Pricing page here showed local currency, not USD
Rank 4
Spark
A cross-platform email app with a Smart Inbox, an AI assistant, AI meeting notes and auto-drafted replies.
sparkmailapp.com8.5
out of 10
Best for: Individuals and small teams who want a polished email app with AI at a lower price than premium clients.
Spark covers the basics of a good email app well: a Smart Inbox that sorts personal mail from newsletters and notifications, Gatekeeper for new senders, snooze, send later, follow-up reminders and unlimited accounts on the free plan. Spark +AI adds a writing assistant that drafts, translates, summarizes and proofreads, plus an AI Assistant that searches emails, attachments, meeting notes and events and acts on what it finds.
Plus brings the AI Assistant with a year of history and 40 AI meeting notes a month. Pro is the plan for heavy email users: Autopilot rules organize, forward and prioritize mail, Auto-Drafts prepare replies in your voice, read statuses show when mail is opened and HubSpot data appears in the client. Spark also offers a CLI that lets AI agents read or triage your mail. Prices on the page we fetched were in euros, so confirm the US figure at checkout.
Standout feature
A free plan with unlimited accounts and a Pro plan that drafts replies in your voice.
Use cases
Freelancers
Manage several client mailboxes in one Smart Inbox
Outcome: One place for every account
Client-facing teams
Let Auto-Drafts prepare replies to routine questions
Outcome: Replies ready to review and send
Busy professionals
Record and summarize calls with AI meeting notes
Outcome: Notes stored next to related email
Key features
- Smart Inbox and Gatekeeper to screen new senders
- AI writing assistant that translates, summarizes, drafts and proofreads
- AI Assistant that finds and acts on emails, attachments, meeting notes and events
- Autopilot rules and Auto-Drafts in your voice on Pro
- AI meeting notes: 40 a month on Plus, unlimited on Pro
Pros
- Free plan covers unlimited email accounts
- Calendar connects Gmail, Outlook and other providers
- Spark CLI gives AI agents read or triage access
Cons
- Auto-Drafts and Autopilot need the Pro plan
- AI Assistant history is limited to 1 month on Free
- USD prices were not shown on the pricing page we fetched
Rank 5
Fyxer
An AI assistant for Gmail and Outlook that sorts the inbox, drafts replies in your tone and takes meeting notes.
fyxer.com8.4
out of 10
Best for: Solo operators and client-facing teams who want drafts waiting in their existing Gmail or Outlook inbox.
Fyxer works on top of the inbox you already have. Connect Gmail or Outlook and it sorts and labels incoming mail, drafts replies in your tone so they wait in your drafts, records meetings and keeps a follow-up list of the promises made in calls and emails. A daily briefing tells you what matters, and Spaces and Flows let you share notes and run automated routines with colleagues.
The free plan is a trial of the briefing and chat features: automatic drafts and inbox sorting start on Pro at $37 per person per month billed annually, or $49 monthly. Usage is metered in credits, which are unlimited for the first 3 months and then 3,000 per paid member each month on Pro; sorting 5 emails costs one credit and a recorded minute costs one. Team at $64 adds shared follow-ups, an organization profile and team reporting, and Enterprise adds SSO, SCIM and HIPAA terms.
Standout feature
Drafts and sorting inside Gmail or Outlook with a follow-up list built from meetings and email.
Use cases
Solo consultants
Have replies drafted in their tone overnight
Outcome: Morning inbox with drafts ready to send
Agency teams
Share follow-ups from client meetings
Outcome: Clear owners for every commitment
Executives
Read a daily briefing instead of the full inbox
Outcome: Priorities set in minutes
Key features
- Automatic replies drafted in your tone
- Inbox sorting and labeling, including historical mail
- Meeting recording with notes and the promises made
- Daily briefings and an always updated follow-up list
- MCP access to your context in Claude, ChatGPT and other tools
Pros
- Works inside Gmail and Outlook, plus Slack and Teams
- One seat covers several connected inboxes
- Viewer seats cost nothing
Cons
- Free plan has no automatic drafts or inbox sorting
- Pro costs $37 per person per month billed annually
- Credit limits apply after the first 3 months
Rank 6
MailMaestro
An AI email assistant for Outlook and Gmail that writes, replies, summarizes and runs AI agents that label, draft and follow up.
maestrolabs.com8.4
out of 10
Best for: Outlook-heavy teams that want an affordable AI writing and triage add-on with enterprise security.
MailMaestro is the most affordable way to add AI writing and triage to Outlook, and it also runs in Gmail through a Chrome extension. It drafts new emails and replies, improves what you have written and summarizes long threads, and its AI agents can label incoming mail, prepare drafts and follow up without a limit on how many you create.
The Email plan costs $12 per seat per month billed annually, which is well below the dedicated email clients on this list, and a free plan stays available after the 14 day trial. Teams that also want meeting notes can add TeamsMaestro or buy MaestroDuo at $25 per seat to cover both. Security is a strength: Maestro Labs states SOC 2 Type II, GDPR and HIPAA compliance, offers a BAA on request and says customer data is never used to train AI models. Enterprise adds SSO and custom retention for 100+ seats.
Standout feature
AI drafting and agents in Outlook and Gmail for $12 per seat with HIPAA support.
Use cases
Legal and finance teams
Summarize long Outlook threads before replying
Outcome: Faster replies with less reading
Sales staff
Run an agent that drafts follow-ups
Outcome: Fewer leads left without a reply
Nonprofits
Add AI writing on a tight budget
Outcome: AI help at $12 per seat
Key features
- Write, reply to and improve emails with AI
- Unlimited AI agents that label, draft and follow up
- Summaries of long emails and threads
- Add-ins for Outlook and a Chrome extension for Gmail
- Optional meeting notes for Teams, Meet and Zoom in 40+ languages
Pros
- Email plan costs $12 per seat per month billed annually
- SOC 2 Type II, GDPR and HIPAA compliant with a BAA on request
- Free plan remains after the 14 day trial
Cons
- Meeting notes cost extra unless you buy MaestroDuo
- Annual plans are not refundable after purchase
- Works as an add-in rather than a full email client
Rank 7
Canary Mail
A cross-platform email app with an AI Copilot for prioritizing, writing and summarizing, plus encryption options.
canarymail.io8.3
out of 10
Best for: Individuals who want an AI email client on every device at the lowest price.
Canary Mail is the budget pick for people who want AI in a full email client. The Growth plan adds an AI Copilot that sorts the inbox into priority tabs, helps write and reply to messages and summarizes what you are reading, along with read receipts, send later, calendar scheduling, an inbox cleaner and app integrations. One license covers Mac, Windows, iOS and Android.
Growth costs $36 a year, which works out to $3 a month, and Pro+ at $100 a year adds PGP encryption, HIPAA-oriented SecureSend, phishing and impersonation detection and misdirection prevention. Both paid plans can also be bought once as a lifetime license, but there is no monthly billing. The free plan keeps the unified inbox, templates and unlimited accounts without AI. Canary is a personal client first, so teams that need shared inboxes or comments should look at Missive or Superhuman.
Standout feature
AI Copilot in a cross-platform client for $3 a month billed yearly.
Use cases
Students and freelancers
Add AI writing to several personal accounts
Outcome: AI help for $36 a year
Healthcare professionals
Send encrypted mail with SecureSend on Pro+
Outcome: Sensitive messages protected
Windows and Mac users
Use the same AI client on desktop and phone
Outcome: One license across devices
Key features
- AI Copilot for inbox prioritization tabs
- AI help composing, replying and summarizing
- Unified inbox with unlimited mail accounts
- Read receipts, send later and inbox cleaner on Growth
- PGP and SecureSend encryption on Pro+
Pros
- Cheapest paid AI plan at $3 per month billed yearly
- Apps for Mac, Windows, iOS and Android
- Lifetime purchase available on paid plans
Cons
- No monthly billing option
- AI Copilot is not on the free plan
- Fewer team features than Missive or Superhuman
Rank 8
Cora
An AI chief of staff for Gmail that screens email, drafts replies in your voice and sends a Brief twice a day.
cora.computer8.3
out of 10
Best for: Gmail users buried in newsletters and notifications who want only the important mail left in the inbox.
Cora takes a different approach to triage: instead of helping you process every message, it decides what deserves your attention. After reading a selection of your email history, it keeps the emails you need to answer in the inbox, moves the rest into a Brief delivered twice a day and prepares drafts in your voice when it has enough context. You can chat with Cora or email it to explain how certain senders or situations should be handled, and it remembers those rules.
Cora is careful by design. It cannot send or delete email, drafts land in your drafts folder for review, and the vendor states it does not train models on your data and is CASA Tier 2 compliant. The limits are scope and teams: it supports only Gmail and Google Workspace, Professional at $20 a month billed annually covers 2 accounts, and there are no shared inbox features.
Standout feature
A twice daily Brief that turns everything you do not need to answer into a short read.
Use cases
Founders
Keep only investor and customer mail in the inbox
Outcome: Newsletters read in a short Brief
Creators
Have replies drafted for common requests
Outcome: Drafts ready to approve
People with 2 Gmail accounts
Screen work and personal mail together
Outcome: One Brief covers both
Key features
- Screens email and keeps messages that need you in the inbox
- Drafts replies in your voice into your drafts folder
- A Brief twice a day summarizing mail you only need to read
- Learns your priorities from email history
- Chat or email with Cora to change how mail is handled
Pros
- Cannot send or delete emails, so you stay in control
- Vendor states your data is never used to train models
- Google Verified and CASA Tier 2 compliant
Cons
- Works only with Gmail and Google Workspace
- Professional covers 2 email accounts
- No team features
Rank 9
Microsoft 365 Copilot
Microsoft's AI assistant across Microsoft 365 that drafts emails, summarizes threads and coaches tone in Outlook.
microsoft.com8.2
out of 10
Best for: Companies on Microsoft 365 that want AI in Outlook, Teams and Office under one license.
Microsoft 365 Copilot is the default choice for organizations that already run on Outlook and Teams. In Outlook, Microsoft documents three core email jobs: drafting emails, summarizing threads and coaching tips that check clarity, sentiment and tone before you send. Copilot Chat in Outlook can use the content you have open, so you can ask about a thread without copying it anywhere.
The value comes from breadth rather than email depth. The same assistant drafts and summarizes documents in Word, analyzes data in Excel, builds presentations in PowerPoint and summarizes and transcribes Teams meetings. For pure inbox triage it is less specialized than Shortwave, Fyxer or MailMaestro, with no documented auto-drafting of replies or custom AI filters. Microsoft's pricing page blocked our automated fetch, so check the current per user add-on price with Microsoft.
Standout feature
One AI assistant across Outlook, Teams and Office for Microsoft 365 customers.
Use cases
Enterprise staff
Summarize a long Outlook thread before joining it
Outcome: Context in seconds
Managers
Use coaching tips on a sensitive email
Outcome: Clearer tone before sending
Project leads
Pull Teams meeting action items into a follow-up email
Outcome: Follow-ups sent the same day
Key features
- Draft emails in Outlook from a prompt
- Summarize email threads
- Coaching tips to improve clarity, sentiment and tone
- Copilot Chat in Outlook that uses the content you have open
- Meeting summaries and transcripts in Teams
Pros
- Built into Outlook, so there is no new app to deploy
- Same assistant works in Word, Excel, PowerPoint and Teams
- Copilot Chat is also available in Edge and the Copilot app
Cons
- Outlook only for email
- No standalone inbox triage rules like Shortwave AI filters
- Pricing page blocked our fetch, so USD price is pending
Rank 10
Missive
A collaborative team inbox for email, SMS and social messages with AI drafts, summaries, translation and AI rules.
missiveapp.com8.2
out of 10
Best for: Small teams that share inboxes and want AI help on replies they write together.
Missive is the pick when email is a team sport. It combines personal and shared inboxes for Gmail, Outlook and IMAP with SMS, WhatsApp and social messages, then adds assignment, internal comments, collaborative drafting and tasks so a group can work a thread without forwarding. AI sits inside that workflow: instant drafts, conversation summaries, translation into any language and custom prompts, with a choice of Anthropic, OpenAI or Gemini models paid through Missive credits or your own API key.
Starter at $14 per user per month billed yearly covers up to 5 users with SOC 2 Type II compliance. Productive at $24 is the plan most teams will want, since it unlocks rules, AI automations, integrations, analytics and API and MCP access for up to 50 users. Business at $36 adds SAML SSO, IP restrictions and advanced analytics. Solo professionals will find it heavier than they need.
Standout feature
A shared inbox with AI drafts and your choice of Anthropic, OpenAI or Gemini models.
Use cases
Accounting firms
Assign client emails and draft replies with AI
Outcome: Shared ownership of every request
Logistics teams
Handle email, SMS and WhatsApp in one inbox
Outcome: One queue for every channel
International teams
Translate incoming mail and replies
Outcome: Answers in the customer's language
Key features
- Team inboxes with assignment, internal threads and collaborative drafting
- Instant AI drafts, summaries and translation into any language
- AI rules and automations on Productive and Business
- Choice of Anthropic, OpenAI or Gemini models, with Missive credits or your own key
- Gmail, Outlook, IMAP, WhatsApp, SMS and social channels in one inbox
Pros
- SOC 2 Type II on every plan
- API and MCP access to connect AI agents
- Bring your own AI key option
Cons
- Starter is limited to 5 users and lacks rules
- AI automations start on Productive at $24
- More setup than a personal email app
Frequently asked questions
+What is the best AI email assistant in 2026?
Shortwave is our top pick because its AI agent searches, sorts and drafts across your inbox, starting at $30 per seat per month. Superhuman is the fastest inbox with AI drafts in your voice, and Spark is the best value full email app.
+Is there a free AI email assistant?
Spark, Fyxer, MailMaestro and Canary Mail have free plans, but they hold back the best AI features. Canary Mail's AI Copilot costs $3 per month billed yearly, and Fyxer's automatic drafts start on Pro at $37 per person per month billed annually.
+Which AI email assistant works inside Outlook?
Microsoft 365 Copilot is built into Outlook. MailMaestro and Fyxer also work inside Outlook, and Superhuman's Email Assistant works in both Outlook and Gmail.
+Can an AI email assistant reply to emails for me?
Most assistants draft replies and leave sending to you. Fyxer, Cora and Spark Pro prepare drafts in your voice before you open the thread, and Cora states it cannot send or delete email. Superhuman says its AI can send fully written emails if you choose.
+Which AI email tool is best for teams?
Missive suits teams that share inboxes, with assignment, internal comments and AI drafts from $14 per user per month billed yearly. Fyxer Team adds shared follow-ups and an organization profile, and Superhuman lets teammates comment on a shared email.
About this list
Updated November 9, 2026 by the Mojolin research desk. Mojolin is self-funded
Questions or corrections: editorial@mojolin.com
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