Alternatives to Missive + AI

Spark Mail is a cross-platform AI email client that sorts, summarizes, and drafts across Gmail, Outlook, Exchange, iCloud, Yahoo, and IMAP.

Jetwriter AI is a personalized AI writing assistant extension that drafts email and message replies in your voice across Gmail, Slack, LinkedIn, and other

MaxAI.me puts a multi-model AI sidebar in your browser to summarize, translate, and reply anywhere you type.

Shortwave is an AI email assistant and native client where Claude 4.6 agents manage triage, drafting, scheduling, and search in your inbox.

AI-first email app that turns your inbox into a chat-style hub for email, docs, tasks, and calls

Canary Mail is an AI email client with an on-device Copilot, PGP encryption, and a unified inbox for Mac, iOS, Windows, and Android.

Shortwave is an AI email assistant for Gmail that triages, drafts, schedules, and searches your inbox with Claude 4.6 models.

AI email assistant and tracking extension that runs inside Apple Mail, Gmail, and Outlook instead of replacing your inbox.

Replai is an AI email assistant that learns your writing style and drafts replies in your own voice, plus inbox triage and meeting notes.

Free email with AI compose, thread summaries, and a Planner that turns messages into tasks and calendar events.

Cora is an autonomous AI email assistant that connects to Gmail, drafts replies in your voice, and sends you twice-daily briefs.

Gmail's Gemini 3 rebuild turns your inbox into a question-answering, thread-summarizing assistant

WPS Office for iOS: a free all-in-one office suite with AI PDF editing, AI Slides, and document translation on iPhone

Flot.ai is a desktop AI copilot with a searchable personal memory that works inside any app or browser tab.

Mailopoly is an AI email assistant that folds email and business messaging into one Poly-powered inbox.

Saner is an AI personal assistant for ADHD that turns emails, notes, to-dos, and files into one searchable Smart Inbox.

Jace is an AI executive assistant that sits on top of Gmail and Outlook to organize your inbox, draft replies with full context, and run email-triggered

Email-based AI reading companion that summarizes articles, YouTube videos, and PDFs — no signup required.

Stamp is an AI secretary for email and calendar that drafts replies in your voice, prioritizes your inbox, and books meetings.

NOX is a macOS-only AI messaging inbox that unifies 10 chat platforms and drafts replies in your voice.

superReply is a Chrome extension that generates tone-matched AI email replies inside Gmail and Outlook Web. Free up to 90 replies a month.

Superhuman is AI email, docs, and a proactive Go assistant whose agents run inside Slack and your other work apps.

Microsoft Copilot: grounded AI chat, search, and content creation across work, life, and school

A persistent-memory AI agent OS that runs your email, files, and research on a schedule.

Zoom Workplace is Zoom's AI-first collaboration platform, tying meetings, chat, phone, mail, calendar, and AI note-taking into one workspace.

UPDF for iOS is an AI-powered PDF editor for iPhone and iPad — edit, OCR, convert, annotate, and chat with PDFs on the go.

Dot Copilot is a mobile AI assistant overlay that tracks expenses, creates calendar events, translates text, and replies in your apps.

Dimension was a proactive AI coworker for email, Slack and calendar work — now winding down May 20, 2026.

Scape is a Mac email client that drafts replies from your email and meetings and records calls locally.

WebMail is an AI-assisted unified inbox that merges Gmail, Outlook, Yahoo, iCloud, and custom-domain accounts into one app on iOS, Android, macOS, and Windows.