Features

Duplicate monitor

Set it and forget it.

Duplicate Monitor watches your folders in the background: hourly, daily, or weekly. When new duplicates appear, you get notified instantly.

Free to try macOS 13+

Dup's home screen, with a disk gauge and the duplicate scan at the top and seven cards below it, each with its own button, for freeing up system space, big files you never open, cleaning up screenshots and bursts, checking photo quality, removing a person, watching folders for new duplicates and reviewing what was deleted.
  • Scheduled rescans

  • Instant notifications

  • Runs in background

How does the duplicate monitor work?

Once configured, the duplicate monitor watches your selected folders using macOS file system events. You choose a rescan schedule: hourly, daily, or weekly. When new duplicates are detected, Dup notifies you via macOS notifications. The monitor is a Pro feature.

Six tools, one app

Everything you need to keep your Mac clean, your library organized, and your storage healthy.

Start free. Upgrade when you need more.