Superhuman is a premium email client engineered for professionals processing hundreds of messages daily. Its AI features include smart compose, automated follow-ups, and advanced search. Now part of Grammarly following a June 2025 acquisition, it combines speed with intelligent writing assistance.
Shortwave is an AI-native email interface built exclusively for Gmail that replaces the default interface entirely. It combines AI-driven search, smart categorisation, draft assistance, and meeting scheduling into a cohesive experience designed from the ground up for modern workflows.
Lindy takes an agentic approach, creating autonomous AI assistants that handle email drafting, inbox triage, meeting scheduling, and CRM management proactively. Rather than reactive assistance, Lindy agents run continuously to manage repetitive tasks before you even see them.
Microsoft 365 Copilot brings generative AI to Outlook and the entire Microsoft ecosystem. It drafts emails using context from Teams conversations, shared documents in Word, data in Excel, and calendar information, all within the enterprise-grade security teams rely on.
Missive is a team-first email and messaging platform that supports Gmail, Outlook, IMAP, plus SMS and WhatsApp channels. Its AI features include draft suggestions and conversation tagging, designed specifically for teams managing shared inboxes and multiple communication channels.
MailMaestro is an Outlook-native AI email assistant that blends models from OpenAI, Hugging Face, AI21 Labs, and Google to deliver strong writing and composition assistance. It works directly within Outlook on Windows, Mac, and web, offering drafting, tone adjustment, and response suggestions.
Spark Mail is a cross-platform email client available on macOS, iOS, Windows, and Android with AI-powered features including smart inbox categorisation, reply suggestions, and subject line generation. Its team features allow collaboration and shared mailboxes with real-time notifications.
Fyxer combines intelligent inbox sorting with AI-powered meeting transcription and note-taking in a unified assistant. Its unique server-side processing continues filtering and organisation even when the client application is closed, providing passive but reliable automation.
Google Gemini in Gmail provides AI-powered email drafting, summarisation, and smart reply features to all Gmail users at no cost. It accesses context from your Google Drive files and Calendar to write more relevant emails, with optional Google One AI Premium for advanced capabilities.
SaneBox is a lightweight email filtering service that learns your preferences and automatically sorts low-priority messages into separate folders. It analyses only email metadata, not full content, making it privacy-respecting whilst reducing inbox clutter at an extremely affordable price point.
Traditional email clients organise and display emails; AI email assistants actively help compose messages, summarise content, filter intelligently, and automate workflows. Modern AI tools use large language models to understand context, suggest responses, and sometimes act autonomously on your behalf.
Shortwave is purpose-built for Gmail and replaces its interface entirely with AI-first design. Google Gemini (free in Gmail), and Spark Mail also integrate well with Gmail. For Outlook users, MailMaestro is the strongest option.
Yes. SaneBox at $7/month offers intelligent filtering, and Google Gemini is completely free. Spark Mail's free tier includes AI-powered categorisation. Missive starts at $14/month for teams needing shared inbox collaboration.