AppCleaner

AppCleaner identifies and removes all files associated with an application in macOS during its uninstallation. The process distributes files across multiple system locations. The tool locates these residual components: preferences, caches, services, extensions, and support files. Running the analysis generates a detailed list of items for review. The selection of items for removal is manual. Confirming the action removes the application and the selected files from the system.

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• Application analysis. The scan examines the structure of the selected application. The engine locates references in system and user folders. The search identifies configuration files, logs, and temporary data. The result presents a categorized list of associated files.
• Service removal. The function detects launch agents and daemons installed by the application. The process identifies files in the LaunchAgents and LaunchDaemons folders. Removal prevents the automatic execution of background components. The operating system stops loading these services after uninstallation.
• Widget manager. The module examines Dashboard widgets installed on the system. The tool locates files with the .wdgt extension in specific directories. Removal removes these components from the Dashboard interface. The user recovers storage space after the process.
• Preference cleanup. The system identifies preference files with the .plist format associated with the application. The search is performed in the user's and system's Library/Preferences folders. Deleting these files resets custom settings. The operating system generates new default files if the application is reinstalled.
• Extension detection. The scan locates plugins and extensions installed in various directories. The tool examines folders like Library/InputMethods, Library/Printers, and Library/Screen Savers. Precise identification avoids affecting components of other applications. Removal removes extended functionalities from the system.
• Cache files. The analysis searches for temporary directories and files created by the application. The function examines Library/Caches and Library/Application Support folders. Deleting this data frees up storage space. The operating system regenerates these files if the application is run again.
• Application protection. The configuration allows excluding specific applications from the analysis. The protection list prevents accidental modification of critical software. Adding applications to this list is manual. The system ignores these applications during global scans.
• SmartDelete mode. The function monitors the system Trash in real time. Activation detects when an application is moved to the Trash. The system automatically shows an analysis window for that application. The user receives the option to delete associated files immediately.
• Drag and drop interface. The design allows dragging applications directly onto the AppCleaner icon. The gesture automatically starts the analysis of the dropped application. The method works with applications from the Finder or the Dock. The process does not require first opening the main application window.
• Search and filtering. The main window includes a search field to locate applications. Filtering works in real-time as the name is typed. The system only shows applications that match the search term. The function speeds up locating applications on systems with a lot of installed software.
• File preview. The analysis results list allows examining individual files. The QuickLook function shows the content without opening external applications. The "Show in Finder" option reveals the exact file location. The preview confirms the relevance of each item before deletion.
• Multiple selections. The interface allows selecting multiple applications simultaneously. Batch processing runs consecutive analyses for each application. The method's efficiency reduces time in system maintenance operations. Each application maintains its own independent list of associated files.
• Confidence indicator. The system assigns a confidence level to each detected file. Files with a high probability of association appear automatically selected. Items with low confidence require manual user selection. The mechanism reduces the risk of incorrectly deleting system files.
• Running applications monitor. The scanner detects active applications during analysis. The system alerts the user about applications that are currently in use. The warning prevents conflicts with operating system processes. Closing the application allows proceeding with the full analysis.
• Activity log. The system maintains a history of performed deletion operations. The log includes date, time, and names of processed applications. The information does not contain specific details about deleted files. The data facilitates tracking changes on the system.

AppCleaner's development began in 2009 by FreeMacSoft. Its creation responded to the need for complete application removal in macOS. The programming language used for development was Objective-C with Cocoa interfaces. The first public version appeared the same year with basic analysis functionalities. Subsequent updates incorporated SmartDelete and widget management. The software's evolution maintained compatibility with new versions of the operating system. The development team focused on maintenance tools for the macOS platform.

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