Run Multiple Copies Of An App At Once On Your Mac [OS X Tips]


Multi Instance App

Ever want to run multiple copies of a program at the same time? Yeah, me neither. But when I ran across this tip, I thought, hey, that’d be pretty cool. I could run two copies of Calculator on the same Mac. At the same time! Or even something like NetNewsWire, running one instance of the app that uses one Google account, and a second instance of the app that uses a different account. Pretty neat, right? But how? It sounds complicated. The word “instance” sounds complicated.

Turns out, it’s really fairly simple. Let’s try it out.