Shortwave

Shortwave is an email client built on top of Gmail and Google Workspace by former engineers from Google's Inbox team, with AI woven through the experience rather than added as a sidebar. It reorganizes the inbox with bundles and AI-assisted triage, and its assistant can summarize long threads, search using natural language, schedule send times, and take multi-step actions. A Ghostwriter feature learns a user's personal writing voice from their sent mail and drafts replies that sound like them, and in 2025 the company added Tasklet, an automation layer that connects the inbox to tools like Slack, Notion, Asana, and HubSpot so email can trigger workflows in other systems. Shortwave emphasizes that customer email is not used to train public AI models, and it lets users choose which underlying models power the assistant. It keeps standard modern email features such as scheduled send, snooze, split inbox, and calendar integration, and offers apps for desktop, web, iOS, and Android. It is aimed at professionals and teams who live in their inbox and want AI help without moving off Gmail. Shortwave offers a limited free plan, with paid individual and team subscriptions that raise AI usage limits and add the automation and collaboration features.