Best A/B Testing for E-commerce 2026
Online stores need A/B testing that reaches product pages, carts and checkout, tracks revenue rather than clicks, and fits the traffic they actually have. Pricing models vary widely: some vendors publish plans tied to tested visitors, while others quote every deal individually based on monthly active users.
We checked each vendor's US pricing page in October 2026. Two changes stand out: VWO and AB Tasty have merged under the Wingify name and no longer publish prices or a free plan, and Unbounce's A/B testing only covers landing pages built in Unbounce. Rankings weigh e-commerce features, pricing transparency, trial terms and ease of use.
The best A/B Testing tools in 2026 are Convert ($399–$599/mo), VWO (custom pricing), and Kameleoon ($495/mo). Convert is the best A/B testing tool for most online stores in 2026: its Growth plan is $299/month billed annually ($399 month-to-month), it lists Shopify price and shipping testing, and its 15-day trial needs no credit card. VWO (now Wingify) offers a broader suite with a 30-day trial but quote-only pricing, and Kameleoon's PBX Starter starts from $495/month.
Convert is the best A/B testing tool for most online stores in 2026: its Growth plan is $299/month billed annually ($399 month-to-month), it lists Shopify price and shipping testing, and its 15-day trial needs no credit card. VWO (now Wingify) offers a broader suite with a 30-day trial but quote-only pricing, and Kameleoon's PBX Starter starts from $495/month.
Compare the top 3 side-by-side
Drag the seat slider, lock a tier per product, see Vendr median pricing and hidden costs for Convert, VWO, Kameleoon.
Our Rankings
Convert
Convert publishes its prices and covers A/B, split URL and multivariate testing, with Shopify price, shipping and theme testing listed on its pricing page, so stores can test offers without a sales call. Growth covers 100,000 tested users a month and comes with a 15-day trial that needs no credit card.- Cheapest paid
- Growth: $299/month billed annually ($3,588/year) or $399/month month-to-month; 100K tested users/month
- Verified
- 2026-10-20 · vendor source
- Published prices with monthly or annual billing
- Shopify price, shipping and theme testing listed
- 15-day trial, no credit card required
- Growth is capped at 100,000 tested users per month
- Multivariate, multi-page and full-stack testing need the Pro plan
VWO
VWO is now sold as part of the Wingify platform, which combines experimentation with personalization, behavior analytics, a commerce suite and feature management. Every plan includes the visual and code editors and unlimited experiments, but pricing is quote-only and based on monthly active users.- Cheapest paid
- Growth plan: quote-only; Wingify does not publish prices
- Verified
- 2026-10-20 · vendor source
- Visual and code editors with unlimited experiments on Growth
- 30-day free trial, no credit card required
- Discounts for product bundles and multi-year contracts
- No published prices; quotes are based on monthly active users
- Multivariate and cross-domain testing require the Pro plan
Kameleoon
Kameleoon's PBX Starter lets teams build experiments by prompting its AI, with sequential testing, SRM detection and 40+ segmentation criteria, for up to 10 experiments and 50,000 visitors a month. A 30-day trial with up to 3 experiments needs no credit card.- Cheapest paid
- PBX Starter: from $495/month (10 experiments, 50,000 visitors/month)
- Verified
- 2026-10-20 · vendor source
- Published starting price for PBX Starter
- Sequential testing, SRM detection and holdouts included
- 30-day trial, no credit card required
- PBX Starter caps you at 10 experiments and 50,000 visitors a month
- Personalization, code editor and mobile app testing are add-ons or Enterprise features
Optimizely
Optimizely packages every plan individually, covering A/B, multi-page, feature and server-side testing with its proprietary Stats Engine and warehouse-native analytics. It suits large retailers with in-house experimentation teams; smaller stores will find no self-serve plan.- Cheapest paid
- Quote-only; Optimizely does not publish prices
- Verified
- 2026-10-20 · vendor source
- A/B, multi-page, feature and server-side testing
- Proprietary Stats Engine
- Warehouse-native analytics and real-time personalization
- Quote-only; no published prices
- No free plan or self-serve trial listed
AB Tasty
AB Tasty has merged with VWO, and its pricing page now shows the same quote-only Wingify plans (Growth, Pro and Enterprise). Stores comparing the two should treat them as one platform and request a single Wingify quote.- Cheapest paid
- Quote-only; Wingify does not publish prices
- Verified
- 2026-10-20 · vendor source
- Same Wingify experimentation, personalization and feature-management suite as VWO
- 30-day free trial, no credit card required
- Bundle and multi-year discounts available
- Quote-only pricing
- No longer an independent alternative to VWO
Unbounce
Unbounce is a landing page builder, and its A/B testing (unlimited tests and variants with manual traffic allocation) starts on the Experiment plan. It only tests pages built in Unbounce, so use it for campaign landing pages rather than product pages or checkout.- Cheapest paid
- Experiment: $112/month billed annually or $149/month month-to-month; up to 30,000 visitors/month
- Verified
- 2026-10-20 · vendor source
- Lowest published price for A/B testing on this page (Experiment plan)
- 14-day trial, no credit card required
- AI traffic optimization on the Optimize plan
- No A/B testing on the Starter or Build plans
- Tests Unbounce-hosted landing pages, not your store's product or checkout pages
Evaluation Criteria
- cart optimization
Cart Optimization
- revenue tracking
Revenue Tracking
- product page testing
Product Page Testing
- pricing
Pricing
- ease of use
Ease Of Use
How We Picked These
We evaluated 6 products and ranked the top 6 (last researched 2026-10-20).
Total cost including hidden fees and scaling costs
Core capabilities needed for e-commerce use cases
Learning curve, setup time, and user interface quality
Quality and availability of customer support
Compatibility with existing tools and workflows
Frequently Asked Questions
01 What's the best affordable A/B testing for e-commerce?
Convert publishes its prices and its Growth plan is the lowest-priced plan here that tests pages across your own store. Unbounce's Experiment plan costs less, but it only tests landing pages built in Unbounce, not product or checkout pages.
02 How much does e-commerce A/B testing cost?
Published entry prices run from Unbounce's Experiment plan (landing pages only) through Convert Growth to Kameleoon's PBX Starter. Wingify (VWO and AB Tasty) and Optimizely are quote-only. Annual billing lowers Convert and Unbounce prices by 25–30%. See each ranking for exact figures.
03 What e-commerce metrics should I A/B test?
Focus on revenue per visitor, cart abandonment rate, average order value, checkout completion rate, and product page conversion rate.
04 Do I need server-side testing for e-commerce?
Server-side testing is valuable for checkout flows and pricing experiments but not essential for most product page and merchandising tests. Convert includes full-stack testing and feature flags on its Pro plan; Optimizely covers server-side testing in its packaged plans.
05 Can A/B testing integrate with Shopify?
Convert lists Shopify theme, price and shipping testing on its pricing page. We did not verify Shopify-specific features for the other vendors in this update, so check their integration directories before buying.
06 Which tools offer a free trial?
None of the six has a free plan. Convert offers a 15-day trial, Wingify (VWO and AB Tasty) and Kameleoon offer 30-day trials, and Unbounce offers 14 days; all four say no credit card is required. Optimizely sells individually packaged plans through sales.
07 Which A/B testing tool is best for small stores?
Small stores usually do best with Convert, which publishes its prices and caps Growth at 100,000 tested users a month, or with Unbounce if they only need to test paid-traffic landing pages. Quote-only platforms like Wingify and Optimizely are built for larger programs.
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