11 Best Tools to Reduce Customer Acquisition Cost (CAC) in 2026

Let’s start with the math that keeps growth teams up at night. You’re paying $80 to acquire a customer. Their LTV is $110. On paper, you’re still in the green, but not by much. Now CPMs tick up, conversion rates dip, and suddenly that margin is gone. This is where most teams get stuck. They don’t have a traffic problem. They don’t even have a budget problem. They have an efficiency problem, and throwing more spend at it just accelerates the burn. The teams winning in 2026 aren’t the ones spendin