Applies to: macOS, Beeper Desktop for macOS
Common side effect: the app in Applications shows 0 bytes

What is happening

macOS thinks the Beeper app is unsafe or incomplete. This usually comes from:

• A managed device or security tool blocking or altering the download.
• A browser download that adds strict quarantine attributes.
• An incomplete copy into Applications.

Quick fix

Remove old copies
Delete Beeper or Text from Applications and empty the Trash.

Re-download from the official Beeper site
If the file looked “damaged” after downloading in Chrome, try Safari or another browser. Confirm the app is hundreds of MB, not 0 bytes.

Move to Applications and allow it
1. Drag the app into Applications.
2. Open System Settings → Privacy & Security, look for the message about Beeper, choose Open Anyway, then Right-click → Open the app once.

Advanced option (Terminal users only):

sudo xattr -rd com.apple.quarantine /Applications/Beeper\ Desktop.app

Then Right-click → Open.

What we know vs what we infer

Confirmed symptoms

• Error: “You can’t open Beeper Desktop.app because it is damaged or incomplete.”
• App appears as 0 bytes in Applications.

Likely causes (inferred)

• An organization policy or security product blocked or modified the download.

If your Mac is managed by IT

Ask your admin to allow the official Beeper macOS installer and domains. If possible, download on a network that does not apply content filtering.