Mailient vs Skim

Mailient sorts incoming Gmail each morning, prepares reply drafts in the founder's own writing style and waits for approval before anything is sent.

Skim is a free, open-source email client for Windows with a built-in AI copilot. Native Rust core, ~5 MB installer, offline-first, instant search, bring your own AI key.

About Mailient

Mailient is an inbox assistant for founders who use Gmail and feel buried by email. After a Google sign in, it studies a sample of sent messages to learn greetings, tone and sign offs, then works through new mail each morning. It highlights the threads that need a decision, saves reply drafts directly in Gmail, lists conversations that have gone quiet, and can book meetings once the user confirms. Repetitive inbox jobs can run on a schedule, and the built in agent is called Arcus. By default nothing is sent without approval, and messages stay inside Gmail. One plan costs 29 USD per month, with a 7 day trial that requires a card.

About Skim

Skim is a free, open-source email client for Windows with a built-in AI copilot. Native Rust core, ~5 MB installer, offline-first, instant search, bring your own AI key. Email clients usually come in two flavors: a browser cosplaying as an app, or a monstrous do-everything suite with ICQ-era vibes. The installer is a few megabytes, cold start is instant, idle memory is modest. No calendar, no contacts manager, no rules, no filters, no snooze, none of the stuff you never actually use anyway.