Vitalsmac

Vitals is a lightweight Activity Monitor alternative for Mac that groups every process under its parent app, so you see about 60 apps instead of the 1,000 individual processes shown by the built‑in tool. It runs in the menu bar, keeps 30 days of usage history, and alerts you when an app behaves badly, helping you spot resource hogs and potential issues without digging through a long list.

With a one‑time $5 purchase (currently at launch price) and a 14‑day refund window, Vitals offers features such as per‑app volume control, temperature, fan, and battery monitoring, and the ability to export data as an image—all without requiring an account or sending extensive analytics.