Application Support
Application Support folders often contain databases, plugins, templates, downloaded assets, and user-specific resources. They can be large and useful. If you plan to reinstall the app and keep settings, do not remove them. If you are removing the app permanently, verified support folders are usually good cleanup candidates.
Caches
Caches are temporary data used to make apps faster. They can usually be regenerated, but they can also contain offline content or expensive downloads. Cache folders are safer than system files, yet they still deserve review. Remove app-specific caches when the owner is obvious.
Preferences
Preferences are usually small plist files. They store settings, window positions, and account choices. Removing them rarely frees much space, but it helps with complete uninstall and reset workflows.
Containers and group containers
Sandboxed apps store data in Containers and Group Containers. These folders may include private app data, synced data, and documents. macOS may ask permission before a cleaner scans them because they can contain app-specific user data. CleanWarden treats these as permission-on-demand areas.
Launch agents and helpers
Background items are the leftovers users notice most. They can start at login, run menu bar components, or support syncing. They should not be deleted casually. Look for matching labels, vendor names, and executable paths.
Frequently Asked Questions
Are leftover files dangerous?Usually not, but background helpers and ambiguous containers need careful review.
Why does macOS ask for permission?Some leftover locations contain data belonging to other apps, so macOS protects access.
Should I clean leftovers every day?No. Leftover cleanup is most useful when uninstalling apps or freeing disk space.