Preppit for Mac

Version early build · Apple silicon and Intel · macOS 12 or later

The canvas runs inside Claude and ChatGPT already. The Mac app adds the part that only a Mac app can do: a hotkey, a frame you draw over anything on your screen, and a shelf you can drag a screenshot onto — straight onto the canvas, without a round trip through your Downloads folder.

You need a Preppit account. The app signs in with it, and makes its own connector link — you never paste one. Create an account first if you haven't; it takes a minute.

Download for Apple silicon Intel Mac

Not sure which? Apple menu → About This Mac. Anything that says Apple M1 or later is Apple silicon.

It is not signed, and macOS will say so

Preppit is early and has no Apple Developer certificate yet, so macOS will refuse to open it the first time and will not explain itself well. Nothing is wrong. This is the ceremony, once:

Double-click Preppit, and read the refusal. On macOS Sequoia and later it offers you only Done and Move to Trash. Click Done.
Open System Settings → Privacy & Security and scroll to the bottom. There is a line saying “Preppit” was blocked to protect your Mac, with an Open Anyway button beside it.
Open Anyway, then open the app again. You will be asked for your password or Touch ID. That is the last you will hear of it.

On macOS Sonoma or earlier it is simpler: right-click the app in Applications, choose Open, then Open again in the dialog. Apple removed that shortcut in Sequoia.

Or, from the Terminal, on any version — this strips the “downloaded from the internet” mark and the app then opens normally:

xattr -dr com.apple.quarantine /Applications/Preppit.app

What it will ask for

Screen Recording: The whole point: it captures the part of the screen under the frame you draw. macOS asks once, and you have to quit and reopen the app afterwards. Every new build asks again while the app is unsigned — macOS treats a differently-signed binary as a different app.
Microphone: Only for voice notes, and only while you are recording one.
Apple Events: It asks the app in front for its name and window title, so a capture knows where it came from, and brings that app back to paste the prompt into.

Removing it

Drag Preppit from Applications to the Trash, and then remove what it left behind — this second part matters, because the app reads settings written under its older names, and a reinstall will otherwise pick up the account and connector token you thought you had removed:

rm -rf ~/Library/Application\ Support/Preppit \
       ~/Library/Application\ Support/Visual\ Prompt \
       ~/Library/Application\ Support/Inkling \
       ~/Library/Logs/Preppit \
       ~/Library/Preferences/ai.preppit.desktop.plist \
       ~/Library/Saved\ Application\ State/ai.preppit.desktop.savedState

Your account and everything you have kept live on the server and are untouched by any of that. If you only want a fresh start rather than a removal, the app can do it to itself: Settings → This Mac → Start again.

Where the file comes from

The download is served from wherever this build was published; the button above is a redirect, so what you get is always the current build rather than a link that rots. If the button says the build is not published, it means exactly that — write and say so.