Exo

Mac

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Freedom report

Two barsScore 6.1

Free tierA free tier is on its own pricing page
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Exo is ranked #67 of 143 in email clients on Freedom251. It runs on macOS. There is a free plan.

Exo plans and pricing

All plans

Free Free macOS · Gmail account · Anthropic API key exo.email · 11 Oct 2026

Compared on email clients

Free plan: Yes
App coverage: desktop
Offline access: Yes
Scheduled sending: Yes
Calendar tools: Yes

Best Exo alternatives

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The record

Product: Exo is an open-source, AI-native desktop email client that gathers context for emails and can draft replies in the user's style.
Triage: Claude analyzes incoming email and assigns high, medium, low, or skip priority.
Drafts: AI-generated drafts use thread context, sender background, and the user's writing style.
Agent: The Cmd+J agent can draft replies, look things up, forward with context, and work with custom agents.
Sender lookup: Automatic web search surfaces sender context such as role, company, and LinkedIn in a sidebar.
Email and calendar: Exo connects to Gmail and Google Calendar, with multi-account email switching and a calendar sidebar.
Organization: Features include priority and custom inbox tabs, natural-language snoozing, archive-ready detection, and hybrid local plus Gmail search.
Composition: The client supports rich-text composition, multiple signatures, scheduled send, undo send, inline images, and attachments.
Extensions: Exo supports runtime-installable extensions, custom agent providers, email-scoped sidebar panels, and MCP server tools.
Offline use: Exo supports offline use with queued actions and incremental background sync.
Local storage: Email data and OAuth tokens are stored locally on the user's computer, and Exo says it does not operate servers that store email data.
AI data flow: AI features process email locally or through an AI provider the user configures; email content may be sent to that provider using the user's own API key.
Security: Exo says OAuth tokens and local data use the operating system's standard security mechanisms, and its source code is publicly reviewable.
Support: The privacy policy directs questions to an issue on GitHub.
Price from: Free

Where it ranks on Freedom251

Best Email Clients in 2026#67 of 143

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Sources

exo.email· checked 11 Oct 2026
exo.email/privacy.html· checked 11 Oct 2026