Diskzy vs Cleaner One Pro: an honest comparison
Cleaner One Pro from Trend Micro is a general cleaner for the Mac. Its site lists a smart scan, junk file removal, a big file finder, duplicate file and similar photo finders, a visual disk map, a startup manager, an app manager that removes apps with their associated files, and a toolbar that monitors CPU, network and memory. It is sold as a yearly subscription, with a free download.
Diskzy covers the disk map, cleanup and uninstalling, and does not try to do the rest. It has no duplicate or similar photo finder, no startup manager and no system monitor. What it adds is an explanation of System Data part by part and a reason for every cleanup item, with a one-time price and every removal going to the Trash.
| Diskzy | Cleaner One Pro | |
|---|---|---|
| Price | Free for 72 hours with everything unlocked, then $9 once for 2 Macs. No subscription. | Yearly subscription. Its site lists 1 device for 12 months at $24.99, shown discounted to $19.99 when checked. |
| Disk map | Maps the whole disk, with search by name, kind, size or age. | Yes. A visual, interactive disk map. |
| System Data | Breaks System Data into named parts, each sized and marked Safe to clear, Look first or Managed by macOS. | Not stated |
| Cleanup | Clean up tab lists caches, logs, Xcode leftovers, project build folders, package-manager caches and old installers, each ticked or unticked with a reason. | Yes. Junk files and big files. |
| App uninstaller | Yes, with leftovers. | Yes. App Manager removes apps and their associated files, with batch removal. |
| Duplicate files and similar photos | No. | Yes. |
| Startup manager and system monitor | No. | Yes. Startup Manager, and a toolbar that monitors CPU, network and memory. |
| Where deleted files go | The Trash. Nothing is gone until you empty it. | Not stated |
| Requirements | macOS 15 Sequoia or later, Apple silicon and Intel. | Not stated on its product page. |
When Cleaner One Pro is the better choice
Choose Cleaner One Pro if you want duplicate and similar photo finders, a startup manager and a menu bar monitor in one app, and are comfortable with a yearly subscription.
When Diskzy is the better choice
Choose Diskzy if you want to pay once, and care most about understanding System Data and seeing a reason next to everything a cleaner offers to remove.
Details about Cleaner One Pro were checked on October 10, 2026 against trendmicro.com. Prices and features change; check their site for the latest.
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See where your Mac's space went
Diskzy maps your disk, explains System Data and clears what's safe. Free for 72 hours, then $9 once for 2 Macs.
Try Diskzy for free