A/B Testing Tools Pricing Comparison 2026

The Complete Pricing Table

Here's what you'll actually pay for the most popular A/B testing platforms in 2026:

Prices as of February 2026. Enterprise pricing varies. Some tools require annual contracts for listed rates.

Understanding the Pricing Models

A/B testing tools use several different pricing models. Understanding them is crucial because the sticker price often doesn't tell the full story.

Per-Visitor Pricing (VWO, Convert.com, Personizely)

Many tools charge based on the number of “tested visitors” or “monthly tracked users.” This seems reasonable at first, but creates a perverse incentive: the more successful your website becomes, the more you pay. A viral blog post or successful ad campaign can push you into the next pricing tier overnight. VWO's pricing, for example, can double or triple if your traffic spikes.

Usage-Based Event Pricing (PageDuel)

PageDuel prices on the events you actually track, not on a “tested visitors” penalty. You pick your monthly event volume and the price follows a transparent ladder — Starter from $9/mo and Growth from $19/mo at 10k events — with unlimited experiments on every plan. Because it's tied to events rather than tested visitors, you always know what the next tier costs, and if you exceed your volume PageDuel keeps tracking your events — you just upgrade to keep dashboard access. Data is never dropped.

Enterprise / Custom Pricing (Optimizely, AB Tasty)

“Contact Sales” usually means $20,000–$100,000+ per year. These tools are built for Fortune 500 companies with dedicated CRO teams. If you need to ask about pricing, you probably can't afford it — and more importantly, you probably don't need it.

The Hidden Costs

The subscription fee is just the beginning. Watch out for these hidden costs:

• Onboarding fees — Some enterprise tools charge $5,000–$15,000 for initial setup and training.
• Annual contracts — Many tools require 12-month commitments. If the tool doesn't work for you, you're stuck paying.
• Overage charges — Per-visitor tools charge extra when you exceed your plan's limit. These overages can be 2–5x the per-visitor rate.
• Feature add-ons — Some tools charge separately for heatmaps, session recording, personalization, and server-side testing.
• Implementation time — Complex tools require weeks of developer time to set up properly. At $100/hour, that's $2,000–$10,000 in opportunity cost.
• Training — Enterprise tools often require dedicated training sessions. Time spent learning the tool is time not spent running tests.

PageDuel avoids all of these: no onboarding fee, no annual contract, no visitor limits, no add-on pricing, and setup takes 5 minutes (not 5 weeks).

Best Tool for Each Budget

Under $10/month — Just Getting Started

Winner: PageDuel Starter (from $9/mo) — unlimited experiments, 10k events/mo, visual editor, and revenue attribution. Nothing else in this price range comes close. See our full guide to free A/B testing tools.

$10–50/month — Small Business

Winner: PageDuel Growth (from $19/mo) — everything in Starter plus 30 websites, 30 team members, longer data retention, and the AI variant generator. Your price scales with your monthly events, so you only pay for the traffic you track. Nothing else in this price range comes close.

$100–500/month — Growing Business

PageDuel Growth still covers most needs — its price simply scales with your event volume as you grow. If you specifically need Shopify theme testing, Shoplift ($149/mo) is an option. Personizely ($39–79/mo) works if you also need popups and personalization. VWO ($356+/mo) starts making sense only if you need heatmaps and session recording bundled in.

$500+/month — Enterprise

If you have a dedicated CRO team, Convert.com ($399+/mo) offers strong privacy features. VWO ($599+/mo) provides a full CRO suite. Optimizely ($3K+/mo) is for organizations running hundreds of experiments across multiple products. But honestly? Most companies at this level are overpaying for features they don't use.

ROI: When Does A/B Testing Pay for Itself?

Let's do the math with PageDuel's Starter plan, from $9/month at 10k events:

• Your site converts at 2% and gets 5,000 visitors/month = 100 conversions
• Each conversion is worth $30 (average order value or customer lifetime value)
• A winning test lifts conversions by 15% = 15 more conversions/month
• Additional revenue: 15 × $30 = $450/month
• Tool cost: $9/month
• ROI: 4,900%

Even with conservative assumptions, A/B testing pays for itself many times over. The question isn't whether you can afford to A/B test — it's whether you can afford not to.

Detailed Comparisons

Want to dive deeper into how PageDuel compares to specific competitors? Check out our head-to-head comparisons:

• PageDuel vs Google Optimize — The best replacement for the now-defunct Google tool
• PageDuel vs VWO — Enterprise power at a fraction of the cost
• PageDuel vs Convert.com — Skip the $399/month price tag
• PageDuel vs Shoplift — Shopify testing and beyond
• PageDuel vs Personizely — Focused testing vs feature bloat