On a Mac, this tool runs directly in Safari or Chrome — no trip to the App Store and no macOS security prompts to click through.
macOS's own system EQ (found in Audio MIDI Setup) can interact with browser-based adjustments. For the clearest results, leave the system-level EQ flat and do your shaping here instead.
Because macOS restricts unsigned installers by default, downloaded audio utilities can trigger extra Gatekeeper security prompts. A browser tool never triggers that flow at all, since nothing is ever written to your Applications folder.