Every platform quietly builds a profile about you. Google, YouTube, Facebook, Reddit, Amazon, etc. They decide what you see, what ads follow you, and what prices you're offered. You never agreed to any of it. MirrorMask lets you fight back. Pick a persona and it browses as that person using real browser sessions. Make your data useless to advertisers, reshape what the algorithm shows you, or see how a different person experiences the web. macOS. Runs on autopilot. Free trial, $39 one-time.