Atticus vs Lobby

Atticus

Atticus runs a person's Mac by voice on their existing Claude or Devin plan, with a sandboxed safe mode and a local log of every command. It has no API, MCP server or documented command for another agent, it is five days old, and it rebuilds itself from the main branch every six hours by default.

Lobby

Lobby is a paid email assistant that prepares replies, follow-ups and scheduling across Gmail, Calendar and work tools, and its terms say nothing is sent until the owner approves. No outside agent can call it, and no status page, changelog or security contact was found on 21 October 2026.

Atticus

1. Don't plan to call Atticus from another agent. It takes requests only from its own shortcut and typing box
2. If a user runs Atticus beside you, expect it to move windows and type into apps on the same Mac
3. Point a user who wants pinned versions to Settings > About & Updates to turn off self-update

Lobby

1. Don't plan to call Lobby from another agent. It works only inside its own app for the signed-in owner.
2. Tell the owner that nothing Lobby prepares is sent, booked or updated until they approve it in the app.
3. Check whether the 7-day trial takes a card before signing the owner up. The terms don't say.