Moving a screenshot from Mac to iPhone is a small task that often breaks concentration. The usual route is to send the image to yourself, wait for an upload, then find and download it on the phone.

Tandem keeps capture, markup and handoff in one workflow. The result enters clipboard history and travels to a paired iPhone over the same local network.

1. Capture the useful context

Choose the frame for what happens next. A screenshot for a teammate may need its title and surrounding context, while an image for a phone note is easier to read when it stays narrow.

Before exporting, check the edges for account names, notifications or internal information that should not travel with the image.

2. Mark up one clear point

Use an arrow for the action and a rectangle for the area. Blur, mosaic or redact names, addresses and internal data before the screenshot leaves the Mac.

Good markup reduces the time the recipient spends looking for the point. If the screenshot needs a long explanation, the frame may still be too broad.

Capture and markup happen locally; the image does not need a cloud editor first.

3. Hand it off to iPhone

After Mac and iPhone are paired on the same local network, Tandem transfers content end-to-end encrypted between the devices. Continue from Tandem, the share extension or the custom keyboard depending on where the image needs to go next.

If the devices do not appear, verify the local network first. This workflow saves more than a tap: it keeps capture, explanation and reuse inside one train of thought.