Answer
Conversion rate optimization (CRO) typically costs between $800 and $10,000 per month when using an agency, or about 30% of a company's total marketing budget if managed in-house. This range includes expenses for tools like A/B testing platforms, analytics software, and personnel such as UX designers, data analysts, and CRO specialists.
Agency pricing varies based on scope. Entry-level plans start around $1,500 per month and include basic A/B testing and heatmap analysis. Mid-tier plans at $3,000–$6,000 add user testing videos, conversion audits, and dedicated project managers. Enterprise plans exceed $10,000 and offer full-service optimization with multivariate testing and integration into CRM systems. In-house teams save on agency fees but face higher fixed costs for salaries and software licenses, which can range from $10 to $500 monthly per tool. The most effective programs treat CRO as an ongoing investment rather than a one-time project.