How Much Does CRO Cost? Tools, Agencies, and Consultants

Conversion rate optimization costs anywhere from nothing to five figures a month, depending on who does the work. In 2026, self-serve CRO tools commonly run from free to about $200 a month, CRO agencies typically charge $3,000 to $15,000 a month on retainer, and independent CRO consultants usually bill $100 to $250 an hour or a fixed project fee. The right number depends on your traffic, your in-house skill, and how much of the work you want to own.

Here is what each option actually costs, what you get for it, and how to pick without overpaying. Last updated July 2026.

The three ways to pay for CRO

CRO spending falls into three buckets: software you run yourself, an agency you hand the whole program to, and a consultant you hire for expertise by the hour or project. Most companies use some mix, and the mix shifts as traffic grows.

How much do CRO tools cost?

Software is the cheapest entry point and where most small teams start. The range is wide because these tools do different jobs. Free heatmap tools like Microsoft Clarity cost nothing and show you where people click and scroll. Self-serve optimization tools commonly sit between $19 and $99 a month; Crazy Egg starts around $29 a month billed annually, and Converto is $19 a month. At the top, enterprise testing platforms like VWO and Optimizely run into the thousands per year and are usually sold on annual contracts with a sales call.

The trap is paying enterprise prices for a job a self-serve tool does. If you do not have the traffic to run statistically rigorous experiments, a $12,000-a-year testing suite is mostly shelfware. Match the tool to the work: free for behavior data, self-serve for audits and variants, enterprise only when you are running a real testing program at volume. We break down the field on our best CRO tools comparison.

How much does a CRO agency cost?

A CRO agency takes the whole program off your plate: research, hypotheses, test design, build, and analysis. That service is priced accordingly. Monthly retainers commonly run from about $3,000 for a boutique shop to $15,000 or more for an established agency with designers, developers, and analysts on the account. Some agencies also charge a percentage of the incremental revenue they generate, or a per-project fee for a one-time audit and roadmap.

An agency makes sense when you have meaningful traffic, a real revenue number on the line, and no CRO skill in-house. The math has to work: a $6,000-a-month retainer needs to produce more than $6,000 in additional monthly profit to pay for itself, which usually means you already have enough conversions for their tests to move a number worth chasing. For a low-traffic site, the same money is better spent elsewhere.

How much does a CRO consultant charge?

An independent CRO consultant or freelancer sits between tools and a full agency. Hourly rates commonly run $100 to $250, with senior specialists higher, and many prefer a fixed project fee for a defined audit and a prioritized roadmap. You get expert eyes and a plan, but you or your team still execute the changes, which is why it costs less than a done-for-you retainer.

This is a good fit when you have people who can ship changes but lack the CRO judgment to know which changes to make. You buy the diagnosis and the priorities, then run them yourself.

What should you actually spend?

Spend against your traffic and your bottleneck, not against a category average.

• Under a few thousand visits a month: stay in software. A free heatmap tool plus a self-serve audit tool covers you for well under $50 a month, and formal testing will not reach significance anyway.
• Moderate traffic, some in-house skill: self-serve tools plus an occasional consultant audit gives you expert direction without a retainer.
• Building new pages, not just fixing them: a page builder adds cost of its own. Tools like Leadpages start around $49 a month, and that buys hosting and templates, not conversion advice, so budget for the audit separately.
• High traffic, revenue on the line, no in-house CRO: an agency or a serious testing suite starts to pay for itself.

Whatever tier you land in, the cheapest high-return move is almost always the same: fix the clear leaks before you pay to test marginal ones. A structured landing page audit finds the copy, layout, CTA, and speed problems that quietly cost conversions, and fixing those often moves the number more than a month of split tests. Converto does that audit and generates the variants to ship for $19 a month, which is why many teams start there before deciding whether they need an agency at all. You can see the plans on our pricing page.

Don't forget the cost of the traffic itself

CRO spending is easier to justify when you remember what a leaky page wastes. If you are buying visits through ads, every click that bounces on a weak page is money gone, so improving conversion effectively lowers your cost per acquisition without touching your bids. That is also why the creative and the page have to tell one story; if the promise in the ad creative sending people there does not match the headline they land on, no amount of CRO budget fixes the mismatch. Conversion work and acquisition work are two sides of the same return-on-spend equation.

The short version

• CRO tools: free to about $200 a month self-serve; enterprise suites run into the thousands per year.
• CRO agencies: roughly $3,000 to $15,000+ a month on retainer.
• CRO consultants: about $100 to $250 an hour, or a fixed project fee.
• Match spend to traffic: software for low traffic, agencies only when tests can move a real number.
• Fix the obvious leaks with an audit before paying to test marginal ones.