Cleaner One
Cleaner One is a macOS utility from Trend Micro that helps users free storage space, find duplicate or large files, and manage installed apps.
What is Cleaner One?
Cleaner One is a Mac utility app for disk cleanup, storage management, and basic system organization. It helps users identify junk files, large files, duplicate files, and similar photos so they can recover space and better understand what is using their storage. The app also includes tools for visualizing disk usage, reviewing installed applications, and removing apps with associated leftover files. These features are aimed at everyday Mac users who want a simpler way to tidy up a crowded drive or track down files that are safe to review and remove. Cleaner One is published by Trend Micro and is offered for macOS as a native desktop app, including versions distributed through the Mac App Store and Trend Micro's own product pages. It fits best as a general maintenance utility rather than a security product.
Key features
- Scan for junk files and temporary data that can be removed to free storage space
- Find large files so you can review what is taking up the most room on your Mac
- Detect duplicate files based on content to help reduce redundant copies
- Identify similar photos for manual review before deletion
- Visualize disk usage with an interactive storage map
- Manage installed apps and uninstall unwanted apps with related leftover files
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
Cleaner One is a legitimate cleanup utility, but tools that scan storage and remove files can affect available data if used carelessly. Access to files and folders is normal for its purpose, and some cleanup or uninstall actions may remove caches, temporary data, or app-related leftovers you intended to keep. Review scan results before deleting anything, especially duplicates, similar photos, and large files.
Recommendation: Keep Cleaner One if you actively use it to manage storage or remove clutter on your Mac. If you do not use cleanup utilities or already prefer built-in macOS storage tools, you can remove it without affecting normal macOS operation.
Common paths
/Applications/Cleaner One.app
Cache paths
~/Library/Caches/com.trendmicro.TrendCleaner
Preference paths
~/Library/Preferences/com.trendmicro.TrendCleaner.plist
Container paths
~/Library/Containers/com.trendmicro.TrendCleaner
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