Backup Disk app icon

Your iPhone is
a backup disk.

Back up the folders that matter on your Mac to your iPhone or iPad, over Wi-Fi or cable. Fast, incremental and private. No cloud, no monthly storage bill.

Download on the App StoreDownload on the Mac App Store

One app for Mac, iPhone and iPad. Free to try.

Mac list on iPhone Browsing Mac folders Transfer progress at 96 MB/s Only changed files are synced
Two minutes to set up

How it works.

Install on your Mac

Get Backup Disk from the Mac App Store and choose the folders you want to protect.

Install on iPhone or iPad

Open Backup Disk on your iPhone or iPad. Your Mac appears automatically on the same network.

Sync with one tap

Tap Sync All. From then on, only changed files are copied, so later backups take seconds.

Built for speed

Hundreds of thousands of files.
No problem.

Copying many small files is slow on every network. Backup Disk packs them into large bundles first, so modern Wi-Fi can run at full speed.

Packaged transfer

Small files travel together in big packages, which cuts network overhead and makes the most of Wi-Fi 6.

96 MB/s

Incremental by design

Backup Disk detects what changed since the last run and syncs only that. Your regular backups finish in moments.

Wi-Fi or cable

Work wirelessly on the same network, or plug in for the fastest possible transfer.

Secure by default

Backups live inside the iOS file system, protected by your passcode and Face ID. A lost phone doesn’t expose your files.

No cloud required

Your data goes straight from your Mac to your device. Nothing is uploaded and there’s no storage plan to pay for.

Take it with you

Your important files, in your pocket.

iPhones and iPads have fast, high-quality storage that is always with you. Backup Disk turns that spare space into a reliable second copy of your work.

  • Browse your Mac folders on iPhone and iPad
  • Back up several Macs to one device
  • Open and share backed-up files with the Files app
Mac folders on iPhone

Back up today. Sleep better tonight.

For Mac, iPhone and iPad.

Download on the App StoreDownload on the Mac App Store