# DiskCompanion > Fast, safe disk cleaner and visual storage map for Mac. Reclaim gigabytes of hidden System Data with zero risk, zero background battery drain, and 100% Trash-first reversibility. ## Docs - [DiskCompanion Home](https://diskcompanion.com/): Safe, lightweight 3.7 MB Mac storage cleaner and visual drive visualizer. - [SpaceLens Visual Map](https://diskcompanion.com/#spacelens): Interactive visual map showing exactly what is taking up space on your Mac. - [What It Cleans](https://diskcompanion.com/#cleanup): Transparent breakdown of safe cleaning for System Data, uninstalled app leftovers, and streaming caches. - [Comparison Guide](https://diskcompanion.com/#comparison): How DiskCompanion compares to heavy subscription-based Mac cleaners. - [Pricing & Licensing](https://diskcompanion.com/#pricing): Free full disk scan and a fair $29 one-time lifetime license for 3 Macs with zero subscriptions. - [Frequently Asked Questions](https://diskcompanion.com/#faq): Reassuring answers about safety guarantees, personal file protection, and Apple notarization. - [Refund Policy](https://diskcompanion.com/refund/): Unconditional 30-day money-back guarantee policy via support@diskcompanion.com. - [Terms of Service](https://diskcompanion.com/terms/): Personal perpetual license agreement for up to 3 personal Macs. - [Full Product Guide](https://diskcompanion.com/llms-full.txt): Complete product guide and safety overview for AI search assistants. ## Key Facts - Purpose: Helps everyday Mac owners safely free up storage, clear bloated System Data, and find large hidden files without risk. - Safety Standard: 100% reversible. All cleaned items go straight to your normal Mac Trash so you can easily restore them with Finder's "Put Back". - Personal File Protection: Hard-coded to never touch your photos, documents, desktop files, or iCloud files. - Zero Background Helpers: Does not run in the background, install menu bar helpers, or drain battery life. When you quit the app, it completely exits. - Tiny Download: Just 3.7 MB. Built natively for macOS using Swift, launching instantly without heavy web wrappers. - Pricing: No subscriptions. Free evaluation (full disk scan and visual map) and a single $29 lifetime purchase for up to 3 personal Macs. - Compatibility: macOS 14 Sonoma and macOS 15 Sequoia (Apple Silicon M1/M2/M3/M4 and Intel Macs). - Security & Privacy: 100% offline, zero network tracking or data collection, and officially notarized by Apple. ## Core Features Explained for Mac Users ### 1. SpaceLens Interactive Storage Map - Turns your Mac's storage into an intuitive visual map where big folders look big and small folders look small. - Click any folder to see what is hiding inside, from old video downloads to forgotten archives. - Renders smoothly at 60 frames per second without slowing down your computer. ### 2. Demystifying and Cleaning "System Data" - Explains the mysterious giant gray "System Data" bar in Apple System Settings. - Safely clears temporary streaming buffers (Spotify, Netflix), browser caches, and orphaned system logs that macOS forgets to purge. - Average recovery is 15 GB to 45 GB of reclaimable space in seconds. ### 3. Complete App Uninstaller - Completely removes applications along with their hidden leftover files. - Cleans orphaned support caches and leftover helper files that standard drag-to-trash leaves behind. ### 4. Smart Duplicate File Finder - Finds true duplicate files and duplicate downloads that waste real disk capacity. - Accurately identifies identical files so you never waste time deleting copies that take zero actual storage. ### 5. Safe System Maintenance - Frees up inactive memory (RAM) to speed up sluggish Macs. - Flushes the local DNS cache and rebuilds Spotlight search indexes with one click. ## Why Mac Users Choose DiskCompanion Over Alternatives - 100% Reversible vs Permanent Deletion: Cleaned files go to your normal Mac Trash. Other cleaners permanently wipe files with terminal scripts. - Zero Battery Drain vs Heavy Daemons: Other cleaners run persistent background monitors consuming 400 MB to 700 MB of RAM. DiskCompanion uses 0 MB when closed. - One-Time $29 Lifetime License vs $40/Year Subscriptions: Fair, transparent one-time pricing with free lifetime maintenance updates. - Lightweight (3.7 MB) vs Bloated (150 MB+): Launches in under 0.5 seconds with zero web-view bloat. ## Contact & Support Information - Website: https://diskcompanion.com - Support Email: support@diskcompanion.com - Developer: DiskCompanion Team - Verification: Notarized by Apple (SHA-256: d75acb03763bc01aff5de8d5563923bf012f4271f33239fe42c5e0ad2ca12e33)