Support

Questions, problems or ideas? Email [email protected]. Tell us your macOS version and what happened; a screenshot helps.

Which Disk Ninja do you have?

Disk Ninja comes in two versions, and a few answers below differ between them:

• App Store version: you installed it from the Mac App Store. Pro is bought and managed with your Apple Account.
• Website version: you downloaded it from diskninja.app. Pro is bought on our website and unlocked with a licence key.

Scanning the whole disk

App Store version

The first time you scan a disk or folder, macOS shows a folder picker. Choose the disk or folder there to let Disk Ninja read it; the app remembers your choice. A few system folders stay unreadable for App Store apps, so their size isn't included.

Website version

macOS protects some folders, such as Mail and Messages. To include them, allow Full Disk Access: open System Settings → Privacy & Security → Full Disk Access and turn on Disk Ninja. If macOS asks to reopen the app, your scan resumes on its own. Without Full Disk Access, protected folders are shown as locked and the rest of the disk is still scanned.

Getting files back from the Trash

Disk Ninja moves the items you choose to the Trash; it never deletes them for good. To get one back, open the Trash in the Dock, select the item and choose File → Put Back. Once you empty the Trash, the items are gone.

DiskNinja Pro

Pro adds "What is this?" and cleanup suggestions. It's a monthly or yearly subscription with a 3-day free trial for new subscribers.

Subscribed in the App Store version

• Cancel or change: open the App Store app, click your name at the bottom of the sidebar, click your name again, then Subscriptions.
• New Mac: use "Restore purchases" in the Pro window.
• Offer code: use "Redeem offer" in the Pro window.
• Refund: only Apple can refund App Store purchases. Ask at reportaproblem.apple.com; see Refunds.

Subscribed on diskninja.app

• Licence key: it's in the email we sent from [email protected]. Enter it in Disk Ninja → Settings → License. A key works on up to three of your devices, and only in the website version.
• Cancel or change: use the link in your receipt email, or sign in at link.com with the email you paid with.
• Refund: within 14 days of any payment, no questions asked; see Refunds.

Privacy

Scanning happens on your Mac. The Privacy Policy explains the optional analytics, crash reports and what the Pro AI features send.