At a glance
| StorageJanitor | DaisyDisk | |
|---|---|---|
| Price | Free to scan; $9.99 once for everything | $9.99 once, free trial, up to 5 personal Macs |
| Main view | Storage bar by category and a list of the biggest items | Interactive sunburst map of the disk |
| Says what is safe to delete | Yes: Safe to delete, Check first or Keep, with a reason | No per-item verdict; system files are protected and you judge the rest |
| Breaks down System Data | Yes, into app data, caches, system files and logs | Reveals hidden space, System Data and snapshots for you to browse |
| How removal works | Caches, logs and Trash contents are deleted; everything else goes to the Trash; a history is kept | You choose what to delete; files are deleted permanently |
| Suggests unused apps, old backups, leftovers | Yes, as suggestions | No suggestions; you decide what to delete |
| External, network and cloud disks | No | Yes |
| Track record | New in 2026 | Long established |
DaisyDisk details from daisydiskapp.com, checked 1 October 2026.
Where DaisyDisk is better
- Exploring visually. The sunburst map makes it quick to see which folder is large and to walk into it.
- More disks. It scans external and network disks, and cloud storage. StorageJanitor only scans the internal disk.
- A long track record. It has years of releases behind it.
Where StorageJanitor is better
- It answers "can I delete this?" Each item has a plain name, a verdict and a reason. You don't need to recognize a folder called
com.apple.MobileSync. - It starts with an answer. The first screen is the amount that is safe to delete right now, with one button.
- It guards the removal. Items marked Keep can't be selected (except an app's own data when you uninstall that app), anything you might want goes to the Trash, files of apps it can see are open are skipped, and every removal is recorded.
- Photos & videos 52.3 GB
- Documents 28.6 GB
- Applications 21.4 GB
- App data 22.6 GB
- App caches 13.1 GB
- System files 9.4 GB
- Logs 1.3 GB
Which one to choose
Choose DaisyDisk if you're comfortable judging folders yourself, want a fast visual map, or need to scan external drives.
Choose StorageJanitor if you want to know what is safe to remove without researching each folder, or if System Data is what's filling your disk.
Questions people ask
Is StorageJanitor a DaisyDisk alternative?
Yes, for people who want to be told what is safe to remove. DaisyDisk maps your disk, protects system files and leaves the other decisions to you. StorageJanitor explains each large item and gives it a verdict.
Which is cheaper, DaisyDisk or StorageJanitor?
They cost the same: $9.99 as a one-time purchase, checked on 1 October 2026. DaisyDisk has a free trial and its license covers up to 5 personal Macs. StorageJanitor is free to scan and to remove up to 2 GB in total.
Does DaisyDisk tell you what is safe to delete?
Not per item. DaisyDisk's site says system files are automatically safeguarded and that only you decide what to delete; it links to a guide on identifying what is safe.
DaisyDisk vs CleanMyMac: which one?
They do different jobs. DaisyDisk is a disk map for finding and deleting large files yourself, $9.99 once. CleanMyMac is an all-in-one suite that adds malware scanning and performance tools, sold by subscription or as a one-time purchase that covers one major version. If what you want is to be told what is safe to remove, StorageJanitor is a third option.
Does StorageJanitor have a disk map like DaisyDisk?
It has a folder view with a treemap, but its main views are a storage bar by category and a list of the biggest items with explanations. DaisyDisk's sunburst map is the stronger tool for visual exploring.
Can StorageJanitor scan external drives?
No. It scans the internal disk only. DaisyDisk scans external and network disks, and cloud storage.