You play things all day across your apps and browser tabs, then lose where they all were. Echo is the memory for all of it: one private history of every song, podcast and video you've played. Press one shortcut and resume any of it at the exact second. Half-watched YouTube comes back in a floating window you can click straight through. Bookmark moments and finish them later. Everything stays on your Mac. No account, no cloud. $9.99 once, three Macs, every update included.