The AI workspace for macOS.
Free on your own hardware. Private by default.
Download for Mac
Free · macOS 14+ · Apple silicon
Pre-built mini-apps
- EmailSorts every inbox into people and noise. Flags what needs a reply.
- TelegramCatches you up on unread chats. Suggests replies in your voice.
- CodeDescribe a website or a program, and watch it get built.
- GhostsClaim one of 2,222 ghosts, free, without leaving the app.
- RecorderRecords your screen or your camera. Share the clip when it's done.
- RoutinesDaily habits, with the research behind each stated honestly.
- WeatherToday and the week ahead, at a glance.
- And moreShopping, to-dos, points, the holders' room, every past chat.
Bring your own AI
Sistine works with whatever intelligence you already have. Four ways in, from free to frontier.
- LocalRuns entirely on your Mac with a one-click local model. Free forever, and nothing leaves the machine.
- HostedPlus, Pro, and Max plans add fast hosted models. No keys, no setup, one subscription.
- Hosted + APIPlus and up point the app at any OpenAI-compatible endpoint with your own key. Your account, your rates.
- Your subscriptionsThe Code module signs in with Claude Code or Codex. Your ChatGPT or Claude plan, your login, our interface.
The Ghosts
2,222 ghosts. One floats your desktop. A free mint for app users. Holders verify with a signature, never keys, and their own ghost comes to life.
Get updates
One email for big releases. Nothing else, ever.
Pricing
The free tier is the product, not a teaser. Paid plans let you borrow a bigger brain for the questions you choose, while private mode keeps your mail and messages pinned to your Mac, even then.
- Freethe whole app, on your hardware, forever$0
- Searchadds web search for your local model$9/mo
- Plusadds a fast hosted model$19/mo
- Prothe best available model, higher limits, priority$49/mo
- Maxthe most room of any plan, first in line, always$199/mo