About

Mo is an on-screen helper for macOS that takes instructions typed or spoken and carries out tasks on your Mac. Tell it what you need in your own words and it tidies your Downloads, plans your day from calendar and reminders, merges PDFs, finds unanswered emails, or drafts replies to chats. Each task returns as a card you can act on rather than a wall of text.

Mo previews every change and waits for your approval before acting. Files go to the Trash rather than being deleted, and no email sends without your say-so. It keeps a full history of changes made, so you can undo anything. You can ask through typing, voice, the Services menu, or Siri and Shortcuts, and Mo answers out loud and listens for follow-up questions.

You choose the brain: Apple Intelligence, a local model through Ollama or LM Studio, or your own API key for Claude, ChatGPT or Gemini. Mo runs on your Mac with no account, analytics or tracking. It's a one-time purchase of $19.99 that works on three Macs, with a seven-day free trial.

Mo runs on your Mac with no account or tracking, uses your choice of AI model including local options, previews all changes before acting, and keeps full undo history. It answers in actionable cards rather than text, works with voice and text input, and integrates with the developer's other macOS apps.

Problem

Most AI assistants return walls of text you must parse yourself, require accounts and tracking, and make changes without showing you first.

Solution

Mo shows each task as an actionable card, runs locally with no tracking, previews changes and waits for approval, and keeps undo history for everything it does.

Updated 1d ago

Facts

Launch type

Free launch, badge required

Domain

appsbymo.app, not verified

Platforms

macOS

Pricing

One-time, from $19.99From the maker's site, checked 31 Oct 2026

Built for

Developers Indie hackers Everyday users