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Best AI Email Assistants in 2026
AI email assistants can help with drafting, sorting, and keeping track of conversations. Compare Mailbutler Smart Assistant, Perplexity, and Spike on reply drafting, inbox triage, thread summaries, and follow-up actions to see which parts of your email routine they address. Email platform support is a practical compatibility check; automatic sending indicates whether a tool can take that step without a manual send. Free-plan availability and paid-from pricing add cost considerations. Match the listed capabilities to the work you want help with and the email platform you use.
- 46 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Metis Mail
by Metis MailFree plan Open source APISelf-hostedWebChoose Metis Mail if you want a unified inbox with an AI agent, phishing analysis, and a free forever open-source plan.
- 2
Fyxer
Free plan APIiPhoneMac+2Fyxer brings email organization, meeting notes, and scheduling into one assistant. Check its account requirements and unsupported mail options before relying on it for an inbox.
- 3
EmailOps
Free plan LinuxMacWindowsEmailOps combines a unified inbox and AI tools with local storage and an optional remote AI service.
- 4
Mailbutler Smart Assistant
by Mailbutler Smart AssistantFree plan AndroidExtensioniPhone+4Smart Assistant brings composition, summaries, and task finding to three major email clients.
- 5
Kerna
Free plan MacWebWindowsKerna brings triage, drafting, summaries, and translation into Gmail and Outlook, with user-triggered processing.
- 6
MailCopilot
Free plan LinuxMacWindowsChoose MailCopilot if you want a free desktop email client with offline sync, scheduling, calendar tools, and optional AI features across Linux, macOS, or Windows.
- 7
Demi
Free plan MacDemi combines inbox assistance, meeting follow-up, and connected workflows while leaving important actions for approval.
- 8
DispatchMail
Free plan APISelf-hostedWebDispatchMail offers local Gmail automation with filtering, drafting, and API access for technically minded users.
- 9
Ellie
Free plan ExtensionWebWindowsEllie focuses on preparing replies while leaving sending under your control. Its integrations and role-based settings suit people managing several kinds of inbox work.
- 10
EmailAgent
Free plan WebEmailAgent combines inbox triage, reply drafting, calendar coordination, and vendor follow-ups. Users retain control over sending because replies require approval.
- 11
MailFlow
Free plan APISelf-hostedWebChoose MailFlow if you want incoming mail classified and reply drafts prepared for review, especially if self-hosting or local Ollama matters to you.
- 12
OpenMailBot
Free plan LinuxMacSelf-hosted+2OpenMailBot combines email triage, summaries, reply drafting, and self-hosting options. The setup prerequisites and ongoing status of several integrations are worth considering before adopting it.
- 13
Perplexity
Free plan AndroidAPIiPhone+3Perplexity combines real-time web search, citations, and file and app search, with additional capabilities at higher plan levels.
- 14
Maillifier
Free plan Self-hostedWebChoose Maillifier if you want free, Gmail-based triage and AI-drafted replies while keeping sending under your control.
- 15
MailMaestro
Free plan ExtensionWebMailMaestro combines email writing, thread summaries, contextual replies, and meeting-response support. Its free use is limited, and Gmail access requires Chrome.
- 16
Serif
Free plan iPhoneMacWeb+1Serif combines routine email handling with a human review path for uncertain or sensitive messages.
- 17
Shortwave
Free plan AndroidiPhoneMac+2Shortwave combines prompt-based email organization with team collaboration and broad app coverage. Its paid tiers mainly change AI search history, thread limits, and filter counts.
- 18
Spark +AI
Free plan AndroidiPhoneMac+1Pick Spark +AI if you want an email assistant that can search inbox information and help with writing, scheduling, and inbox organization across common email providers.
- 19
Spike
Free plan AndroidiPhoneMac+2Spike offers distinct email-app and Teamspace options, with plans that vary in addresses, collaboration, storage, and upload limits.
- 20
Superhuman Go
Free plan AndroidExtensioniPhone+3Superhuman Go offers a free starting plan and paid tiers with additional connectors and agent features. Review plan-specific limits and connector availability before relying on a particular workflow.
- 21
MailWise
Free plan WebChoose MailWise if you use Gmail and want help sorting mail, drafting replies, summarizing messages, and managing follow-ups.
- 22
Drag
Free trial AndroidAPIExtension+4Drag combines shared Gmail workflows with additional channels and AI features. Check the plan limits and pricing structure to see whether they fit your team.
- 23
thread.
Free plan ExtensionChoose thread. if you write a lot of email and want a draft based on the conversation in Gmail or Outlook.
- 24
Inbox Zero
Free trial AndroidAPIExtension+3Inbox Zero combines inbox automation, reply drafting, meeting briefings, and analytics across web and mobile access.
- 25
Kai
Free trial AndroidiPhoneMac+1Kai combines inbox handling, calendar work, meeting capture, and follow-up tracking across common platforms.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
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