Mark up screenshots like a teacher grades a page.

Circle anything, say what's wrong, and it's written beside the circle in red pen. Then paste the set into your chat.

Get Redpen How it works

Free for macOS 15 or later.

The Redpen editor. A screenshot with two red circles, handwritten notes beside them, and a numbered note under the image. The other screenshots sit in a carousel at the bottom.

Circle it

Circle anything. Say why.

Your scribble becomes a clean red circle, and Redpen starts listening. What you say is written right beside it. Click anywhere to leave a note there instead.

A screenshot marked up with Redpen. Short notes sit beside two circles, and a long note is numbered and written under the image.

Talk it through

Long notes go under the image.

Talk as long as you like. Long notes move below the screenshot, numbered to match the mark, so a model reads them as plain text.

Screenshots

Take a screenshot. Redpen asks.

New screenshots, from this Mac or your iPhone through iCloud Photos, turn the menu bar loop red, and one notification asks after a burst. Or pick images from Photos.

Voice

Circle it. Say why.

Redpen listens as soon as you circle, and writes your words beside the mark when you pause. Speech becomes text on your Mac with Parakeet. Nothing is sent anywhere.

Redpen is signed and notarized by Apple.