Your Mac,
under control.

MacMonitor brings Organizer, Storage Lens, Activity Monitor, and Developer Space together in one native Mac app. Preview file moves, understand storage, follow running activity, and review cleanup before deciding what to change. Developer Space groups existing tools for local models, build caches, and listening servers.

Cleaner has four tools. The junk cleaner finds app caches, logs, crash and diagnostic reports, saved application state, iOS device backups, and Trash. The duplicate finder compares file contents in a folder you choose and always keeps one copy. Large and old files lists big files with when they were last used. Idle apps finds apps unused for 90 days or more, with their leftovers. Developer tools add local model weights and build caches.

System Data groups files that do not fit another macOS storage category; it is not one folder to empty. In MacMonitor, Storage Lens → System Data shows what makes it up on your Mac and cleans the parts apps rebuild on their own, with Put Back. Start in System Settings → General → Storage, identify app-owned data, and review caches, developer files or backups you no longer need. Leave protected update data, swap and Time Machine snapshots to macOS. MacMonitor can help review supported files, but its totals do not reproduce Apple’s System Data figure. Read the step-by-step System Data cleanup guide.

Not your files. The app has no account and no analytics, and your scan results, history, and settings stay on your Mac. Apart from an update check you start yourself, the only network request it makes is the license check in the direct download: it sends your license key and your Mac’s name to Lemon Squeezy, our payment provider, when you activate and about once a day after that. The Mac App Store edition makes no network requests. Optional Organizer suggestions for documents and images are computed on-device with Apple’s own models. Details are on the privacy page.

macOS protects some folders, so measuring the whole disk needs Full Disk Access, which you turn on once in System Settings. It is optional. Without it, a whole-disk scan skips Desktop, Documents, Downloads, iCloud Drive, and external drives so macOS does not ask folder by folder, and it tells you what was not measured. Storage scans read sizes and metadata, not file contents.

MacMonitor is a universal app, so it runs natively on Apple silicon and on Intel Macs that run macOS 14 or later. Available readings vary by hardware and permissions; for example, GPU utilization is not reported on every Mac.

Model Vault currently discovers installed models from Ollama, LM Studio, and the Hugging Face cache and lets you review permanent removal. Installing models inside MacMonitor is planned; use your existing model tool to install them today.

No. Choose a folder, inspect the proposed organization, and approve the changes. Collisions and duplicate retention are checked as part of the flow, and you can undo the last organization during the session.

Activity combines subsystem views with per-app resource usage and local listening processes. It adds a Health view with memory pressure, swap, and thermal state, and keeps seven days of history so you can see what happened while you were away.

Yes, if you turn it on in Settings. Alerts are off by default. MacMonitor can notify you when memory pressure is critical for over a minute, free disk space drops below 10 GB, the CPU stays above 90% for five minutes, or macOS reports a Serious or Critical thermal state. Each alert fires at most once an hour, and alerts run while MacMonitor is open.

No. Cleanup requires your action and a confirmation. Most items move to the Trash, where you can recover them until it is emptied, and files in the Trash still occupy space. Permanent actions are clearly labelled and include erasing items already in the Trash, removing local AI models, and erasing simulator data.

Yes. After a cleanup that moves items to the Trash, a Put Back banner returns everything from that cleanup to where it was in one click. It never overwrites a file that has since taken an item's place. Permanent actions, such as erasing items already in the Trash, cannot be put back and say so before you confirm.

The first 50 purchases are offered at $4.99 USD. After those purchases, the regular one-time price is $19 USD. Availability of the introductory offer, tax, and the final total are shown at checkout.

The Buy now button opens Lemon Squeezy's hosted checkout. After payment, your receipt includes your license key and a download link for the notarized Mac app. Open the app, enter the key once, and it activates on that Mac.

Use the Buy now button to open Lemon Squeezy checkout. Check the product details and macOS requirement there before purchase; your receipt provides download access and license details.