Compare Metrics, a provider of adaptive commerce navigation and discovery tools, has raised $3.8 million. The financing is led by Austin Ventures. Existing investors Julie Allegro of Allegro Venture Partners, Bob Greene of Contour Ventures, Capital Factory, Mike Maples Jr. of Floodgate, Brett Hurt of Hurt Family Investments and independent investors Ralph Mack and Adam Ross also participated in the round. Compare Metrics has raised $8 million till date.