Preflight

Preflight watches CPU, memory pressure, swap, disk, network and power, and temperature where it is available, and explains what it sees. Choose a workload such as development, meetings, creative work, local AI or gaming, and it draws up an exact list of processes to stop while keeping the work that workload needs.

Nothing stops until you have reviewed the list and confirmed it. Apps get a normal quit request; force quitting is a separate, deliberate choice. Afterwards Preflight shows what it measured before and after. It does not clean caches, add memory or promise a faster Mac, and a healthy Mac may need no action. History stays on your Mac.