Privacy policy

Lumen Monitor does not collect data. The readings stay on the Mac.

Updated 10 October 2026.

What the app reads

On the Mac where it is running, Lumen Monitor reads CPU use, memory use (including the app, wired, compressed, and free breakdown), free and used space on each physical disk, read and write rates for the disks you select, battery state when a battery is installed, upload and download rates for the network interface you select, swap use, memory pressure, thermal state on Apple silicon, load average, time since startup, per-core CPU use, and which processes use the most CPU and memory (names and process IDs, including an application or process ID you choose for App Monitor). It uses those numbers only to draw the menu bar item, the window, and the widgets.

Where the numbers go

They stay on that Mac. The app has no account, no analytics, and no advertising. It does not send readings, settings, process lists, or history to a server, and it does not sell or share them. Peak limits and history are stored in a folder on the Mac that the app and its widgets share. Nothing in that folder is transmitted.

Network

The network reading is the change in bytes sent and received on this Mac, so the widget can show a rate. Lumen Monitor does not look at the contents of network traffic, does not inspect other apps’ connections, and does not upload that rate.

Processes

Top CPU, Top Memory, and App Monitor show process names and process IDs from this Mac so you can see what is busy. That list is not uploaded. App Monitor only tracks the application or process ID you pick in Edit Widget.

Contact

Questions about this policy go through the support page.