
#1Top pickFree option
Inbox assistant that sorts email and drafts replies in your tone
Fyxer AI is an email assistant for Gmail and Outlook that sorts and labels your inbox and drafts replies in your tone. It also takes meeting notes with follow-up actions and helps with scheduling. Paid plans start with a 14-day trial, and accounts drop to a free plan afterwards.
Why it's here
- +Works inside Gmail and Outlook, no new client
- +Drafts sound like you
- +Meeting notes included
Watch out for
- −Drafts still need your review before sending
- −Pricier per person than some rivals
- −Gmail and Outlook only
Free · from $37/moTask agent

#2
Fast email client with Auto Drafts, Ask AI and auto-archive
Superhuman Mail is a keyboard-driven email client with AI that drafts replies, summarizes threads, archives clutter and answers questions about your inbox. It is now part of the Superhuman suite alongside Grammarly. Mail is included in the Business plan and above.
Why it's here
- +Very fast interface
- +Auto Drafts and Ask AI across your inbox
- +Works with Gmail and Outlook accounts
Watch out for
- −No free plan for Mail
- −You have to switch email clients
- −AI assists; it does not act on its own

#3Free option
AI assistant for email, meetings, calls and routines across your apps
Lindy is an AI assistant platform that handles email, meeting notes, follow-ups, phone calls and scheduled routines across your work apps. You teach it skills, it remembers preferences, and it can learn a task by watching you do it once. It connects to 1,500+ integrations and supports MCP.
Why it's here
- +Covers email, meetings and phone
- +Large integration library
- +Learns tasks from a demonstration
Watch out for
- −Credit usage can be hard to predict
- −Free trial credits expire in 7 days
- −Complex routines need testing
Free · from $49.99/moAutonomous

#4
Gmail client with an AI assistant that searches, writes and organizes
Shortwave is an AI email client for Gmail with an assistant that searches your mail by description, drafts replies in your style and organizes the inbox. The assistant can connect to other apps through integrations or MCP and browse the web for context. Plans differ by model tier and daily AI usage.
Why it's here
- +Strong natural-language search
- +Learns your writing style
- +Connects to other apps via MCP
Watch out for
- −Gmail only
- −Automated replies live in a separate product (Tasklet)
- −Higher AI usage needs pricier tiers

#5
AI email assistant that drafts replies and runs inbox rules
Jace is an AI executive assistant for email that organizes your inbox, drafts responses and reacts to incoming email with workflows. Smart Rules can auto-CC people, create tickets or send Slack alerts when certain emails arrive. Plans are credit-based and include a 7-day free trial.
Why it's here
- +Rules act on email automatically
- +Multiple inboxes on one plan
- +Lower entry price than Superhuman
Watch out for
- −Credit limits on heavy use
- −Smaller company and ecosystem
- −Advertised prices assume yearly billing

#6Free option
AI agents that act across 9,000+ apps using your Zapier connections
Zapier Agents is a product from Zapier for building AI agents that do work across 9,000+ connected apps. You describe an agent with help from Zapier Copilot, give it company knowledge and let it run tasks or answer questions. It has a free plan with 400 activities a month and paid plans with more.
Why it's here
- +Largest app catalog
- +Free plan to start
- +Builds on existing Zapier connections
Watch out for
- −Activity caps per run on lower plans
- −Agent logic is less transparent than a Zap
- −Team allowances not published
Free · from $33.33/moTask agent
More email & inbox agents
Listed but not yet reviewed in depth.