Wallpapers + Duo for $29.90·instead of $37.80 bought separately

Duo Animation

Install NIVO Duo in two minutes.

Duo is an indie app and isn’t notarized by Apple yet. That only means macOS asks you to confirm it once. Every click is below.

  1. 1 Open the download, drag it over

    Double-click NIVO-Duo.dmg in your Downloads folder. Drag the NIVO Duo icon onto Applications, then eject the disk image.

    Disk image window: NIVO Duo on the left, Applications on the right

  2. 2 Open it, then click Done

    Open NIVO Duo from Applications. Because the app isn’t notarized, macOS shows this once. Click Done. Don’t move it to the Bin.

    “NIVO Duo” Not Opened

    Apple could not verify “NIVO Duo” is free of malware that may harm your Mac or compromise your privacy.

    Move to Trash Done

  3. 3 Click Open Anyway

    Open System Settings → Privacy & Security and scroll down to Security. Next to “NIVO Duo was blocked”, click Open Anyway. Confirm with Touch ID or your password, then click Open.

    GeneralAppearanceControl CentrePrivacy & SecurityDesktop & DockDisplays
    Privacy & Security Security
    Allow apps fromApp Store & Known Developers ⌄
    “NIVO Duo” was blocked to protect your Mac.Open Anyway

  4. 4 Allow Screen Recording

    In Duo, click Allow. macOS opens Screen & System Audio Recording: switch on NIVO Duo, then choose Quit & Reopen. Frames stay in memory and are never saved.

    GeneralAppearanceControl CentrePrivacy & SecurityDesktop & DockDisplays
    ‹ Screen & System Audio Recording Allow the applications below to record the content of your screen and audio.
    NIVO Duo
    Other app

  5. 5 Close your lid slowly

    Done. Duo follows your lid from now on. Hold still and it clears after two seconds. Press Esc to stop it anytime, ⌃⌥⌘F to switch it on or off. To start Duo with your Mac, choose Open at Login in its menu bar icon.

    The NIVO Duo app, ready

Something not working?

“No lid sensor found”: your MacBook doesn’t have the lid-angle sensor. That’s the M1 Air, the 13″ Pro with M1 or M2, and Intel MacBooks. Write to us for a refund.

Screen Recording is on, but Duo still asks: in Screen & System Audio Recording, remove NIVO Duo with the minus button, add it again from Applications and reopen the app. This also helps after an update.

No “Open Anyway” button: open Duo once more from Applications first. The button appears for about an hour after macOS blocked it.

Nothing happens when I close the lid: check that the switch in Duo says On, and close the lid slowly. Duo animates the built-in display.

Still stuck? Write to hello@nivovisuals.de. A real person answers.