Problems
Unwanted applications
Unused applications keep holding disk space through the support files they leave behind. How to find them and remove them completely.
Short answer
Unwanted applications hold more space than they appear to, because the application bundle is only part of what they installed. Removing an application completely means removing its support files as well.
An application on macOS occupies space in two places: the application bundle and the support files it creates elsewhere.
What this means
An application on macOS is not one file. It is the application bundle in the Applications folder plus everything it creates afterwards: preferences, caches, containers, application support folders, saved state and logs.
Removing only the bundle is a partial uninstall. The rest stays on disk, usually in your user Library, and it is frequently larger than the application itself.
Why it happens
Support files accumulate for structural reasons:
- Applications keep caches and containers by design. These speed up launch and preserve state. They are not removed when the application is.
- Trials install their full data set. A time-limited trial that ends is still installed, with all of its data.
- Login items and helpers are separate. Background components installed by an application are separate files and survive a bundle removal.
- Uninstalls are rare. Applications stop being used long before they are removed, and the storage cost is invisible from the Applications folder.
Finding unused applications
Two signals identify applications worth removing:
- Date last opened. Sort the Applications folder by it. Applications untouched for many months are candidates.
- Size including support files. This is the number that matters, and it is not shown in the Applications folder. The App Uninstaller reports the application together with its support files, which is usually where the surprise is.
Before removing
- Check for documents. Files you created with the application and saved elsewhere are not part of the uninstall. Files stored inside the application’s own library may be.
- Check what else it installed. Login items, background helpers and browser extensions can belong to an application. If something stops working later, this is why.
- Decide about settings. Preferences and support files are what restore your configuration on a reinstall. If reinstalling is plausible, keeping them is reasonable.
Why applications accumulate
Removing an application takes a decision, and the decision has no deadline. So it does not happen. The result is a machine carrying the full data set of every tool anyone has ever tried on it.
The countermeasure is small: once or twice a year, sort the Applications folder by date last opened and deal with the top of the list. That is enough to keep the accumulation from becoming a storage problem.
How Neatwise helps
The features below address this problem directly. Each one is part of Neatwise: Mac Cleaner.
App Uninstaller
The App Uninstaller removes an application and the support files macOS leaves behind after a normal drag-to-Trash uninstall, so the disk space an application was using is actually released.
Storage Analyzer
The Storage Analyzer shows how much disk space each category and folder on your Mac is using, so the largest consumers are identified before any cleanup begins.
Frequently asked questions
- How do I remove applications I no longer use?
- Remove the application and its support files together. Dragging the app from Applications to the Trash removes the bundle; preferences, caches, containers and application support folders remain and have to be removed separately.
- Why does deleting an app not free the space I expected?
- Because the bundle is usually the smaller part. Applications commonly store far more in caches, containers and support data than the application itself occupies. Those files stay behind after a normal uninstall.
- How do I find applications I have not used in a long time?
- Sort the Applications folder by date last opened. Anything untouched for months is a candidate. Then check the size of its support files, which is where the space usually is.
- Is it safe to delete built-in macOS applications?
- No. Applications that ship with macOS are part of the system and are protected or restored by the system. The App Uninstaller targets applications you installed.
Product information
- Official product
- Neatwise: Mac Cleaner
- Platform
- macOS
- Available on
- Mac App Store
- Category
- Mac Cleaner / Mac Utility / Storage Management
- Written by
- zhangyi xu
- Last updated
This page describes features available in Neatwise: Mac Cleaner: