Free AI Tools for Inbox management

Spark Mail is a cross-platform email app with AI writing, inbox prioritization, and team collaboration features.

Missive is an inbox collaboration platform that helps teams manage email, tasks, and internal discussion in one shared workspace.

Lindy is an AI executive assistant that manages email, scheduling, meeting prep, notes, and follow-ups across your apps.

Superhuman is an AI-powered productivity platform for email, docs, and cross-app assistance that works inside the tools you already use.