Marco, a privacy-first, offline-first email client (IMAP-native, no AI)
Hey HN. I'm Isaac, and I'm building Marco (https://marcoapp.io), a cross-platform email client that works with any IMAP provider. macOS, iOS, and web today. I started Marco because I finally lost patience with Apple Mail, and the email client market has a weird gap. Legacy clients look terrible and/or are not cross-platform. The good ones scan your data or cost $300+/year. And there's a graveyard of startups (Tempo, Big Mail, Caley) who built beautiful products and shut down after a year or two. I made a few opinionated bets early on: 1. IMAP-first, not Gmail API-first.…
Marco, a privacy-first, offline-first email client (IMAP-native, no AI) launched on March 25, 2026 with 6 votes, #1,631 of 23,380 launches that month and more than 75% of that year's launches.
What it does
Email used to be open, simple, and yours. Today, most clients have turned into closed systems — ones that work only with Gmail or Outlook, and fund themselves by scanning or selling your data. We built Marco to restore email's core values: fast, private, and free from lock-in.
Marco is a private, offline-first email client for all your accounts, with no AI-written drafts, summaries, or replies. Available on iOS, Mac, and web.
Marco doesn’t use AI to write for you. No AI drafts, rewrites, summaries, or replies. Just private, offline-first email between people. Email should carry a person’s thoughts, not an agent’s output. AI features are turning conversation into content. Gmail ads cluttering my inbox, and Outlook is an unusable mess. Switched to Marco last month. Fast, clean, works offline. Genuinely can't believe I waited this long. AI drafts and rewrites make every sender sound polished, efficient, and the same. AI features process conversations that were meant for the people in them. When software can write endlessly, your attention pays the price. No ads, no tracking, no data mining. Your emails stay yours.…from marcoapp.io
In the maker’s words, at launch
Hey HN. I'm Isaac, and I'm building Marco (https://marcoapp.io), a cross-platform email client that works with any IMAP provider. macOS, iOS, and web today. I started Marco because I finally lost patience with Apple Mail, and the email client market has a weird gap. Legacy clients look terrible and/or…
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