A/B TestingeCommerce CROComparison · Updated October 2026 · 10 min read

Fibr AI vs Optimizely vs Explore (2026): Where Shopify Revenue Is Won

VR
Valentin Radu · Founder & CEO, Omniconvert · Author, The CLV Revolution
15+ years working with eCommerce brands including Decathlon and 1,000+ DTC Shopify stores
Reviewed by Cristina Stefanova, Head of Content
Fibr AI, Optimizely Web Experimentation, and Omniconvert Explore compared: AI landing page personalization and enterprise A/B testing versus Shopify-native eCommerce CRO measured in revenue per visitor.
Answer Capsule

Fibr AI is an AI landing page personalization tool for paid traffic campaigns. Optimizely Web Experimentation is an enterprise A/B testing and feature flag platform for product and engineering teams. Omniconvert Explore is the Shopify-native eCommerce CRO platform: it runs experiments on product pages, cart, and checkout, and measures the result in revenue per visitor rather than clicks.

User ratings
  • Fibr AI 4.6 G2 , 133 reviews , as of 2026
  • Optimizely Web Experimentation 4.2 G2 , 401 reviews , as of 2026
  • Omniconvert Explore 4.6 G2 , 191 reviews , as of 2026
Key Takeaways
  • Fibr AI is an agentic AI tool that generates personalized landing page variants for paid traffic campaigns, and a 4.6 out of 5 G2 rating across 133 reviews. [G2, 2026]
  • Optimizely Web Experimentation is the enterprise standard for A/B testing, full-stack experimentation, and feature flags, with a 4.2 out of 5 G2 rating across 401 reviews. [G2, 2026]
  • Fibr stops at the post-click landing page; Optimizely runs enterprise experiments across web and server-side surfaces, but neither is Shopify-native.
  • Neither tool runs experiments on Shopify product pages, cart, or checkout, and neither measures outcomes in revenue per visitor on the store funnel.
  • Omniconvert Explore adds native Shopify experiments on product, cart, and checkout, with heatmaps, surveys, and overlays beside them, measured in revenue per visitor: pick it for Shopify revenue surfaces.

Teams comparing Fibr AI vs Optimizely Web Experimentation are usually deciding how to spend the next optimization dollar: on AI-generated landing pages for paid traffic, or on an enterprise experimentation program with full-stack feature flags. Fibr AI answers the landing-page question after the ad click. Optimizely answers the enterprise testing question across web and server-side surfaces. Neither is built around the surfaces where a Shopify store actually wins or loses revenue: the product page, the cart, and the checkout. This page covers what each does well, the gap they share, and when Omniconvert Explore is the right layer.

What is Fibr AI, and what is it actually good at?

Fibr AI is an agentic landing page personalization platform. It uses AI to generate and test personalized page variants built from audience segments and campaign data, so performance marketing teams can match hundreds of landing pages to hundreds of ad sets without a designer or developer in the loop. [Fibr AI, 2026]

Fibr AI holds a 4.6 out of 5 rating on G2 across 133 reviews. [G2, 2026] Its sweet spot is the post-click moment of a paid campaign: a visitor clicks an ad, and Fibr serves the landing page the model thinks best matches that audience, dynamically generated rather than hand-built.

The category Fibr sits in is AI-generated landing page personalization. It removes the design and development bottleneck that stops performance teams from launching enough variants. That focus is the point of the product.

AI landing page personalization defined

AI landing page personalization uses generative models to produce page variants on the fly, tied to audience segments and campaign source, so a paid ad can land on a page tuned to the viewer. Fibr AI does this at scale for performance marketing. It is a post-click acquisition layer, distinct from running a controlled revenue experiment on product, cart, and checkout pages.

Where Fibr AI is genuinely strong

  • AI-generated variants at scale: hundreds of personalized landing pages without manual design cycles.
  • Audience-aware pages: variants built from campaign source, audience segment, and intent signals.
  • Shorter time to launch: teams running paid traffic can match page to ad set without engineering tickets.
  • Agency-friendly workflow: approachable for performance marketers, no front-end code required.

Where Fibr AI hits its ceiling for an eCommerce store

  • Landing pages only: no experiments on Shopify product pages, cart flows, or checkout sequences.
  • No multivariate or server-side testing: variants are AI-generated, not full factorial experiments.
  • No visual editor on the store: no in-page edit of a product template or checkout.
  • Landing-page metrics, not store revenue: no concept of revenue per visitor on the product-to-checkout path.

What is Optimizely Web Experimentation, and what is it actually good at?

Optimizely Web Experimentation is the enterprise standard for A/B testing. It supports visual and full-stack experiments, feature flags, advanced audience targeting, and server-side testing, with deep statistical rigor and integrations across the enterprise data stack. [G2, 2026]

Optimizely holds a 4.2 out of 5 rating on G2 across 401 reviews. [G2, 2026] Its strength is scale: product and engineering teams running hundreds of concurrent experiments across web and server-side surfaces, with the governance an enterprise program requires.

The category Optimizely sits in is enterprise experimentation. It is built for the technical operator who owns a testing program and the engineering team that ships feature flags beside it. That focus is the point of the product.

Enterprise experimentation defined

Enterprise experimentation combines web A/B testing, server-side testing, and feature flags under one governance layer, so a product organization can roll out, measure, and gate changes at scale. Optimizely does this well. It is a technical experimentation layer, distinct from running a controlled revenue experiment on product, cart, and checkout pages inside a Shopify store.

Where Optimizely is genuinely strong

  • Full-stack and server-side testing: experiments beyond the browser, including backend logic and APIs.
  • Feature flags beside experiments: gate releases and run tests under the same control plane.
  • Advanced audience targeting: granular segmentation across the enterprise data stack.
  • Statistical rigor and scale: designed for hundreds of concurrent experiments with the largest enterprise base in the category.

Where Optimizely hits its ceiling for an eCommerce store

  • No native Shopify integration: no eCommerce experiment templates, so store setups are custom work.
  • Heavy implementation lift: operating it fully requires technical expertise and ongoing developer time.
  • Enterprise pricing posture: custom contracts priced for enterprise, not mid-market Shopify brands.
  • Generic conversion focus: results are framed around general metrics, not revenue per visitor on the store funnel.

What Fibr AI and Optimizely Web Experimentation cannot do for an eCommerce store

Fibr AI and Optimizely sit at opposite ends of the testing spectrum, but they share one blind spot for a Shopify store. Fibr personalizes the page a paid click lands on. Optimizely runs enterprise experiments across web and server-side surfaces. Neither is built around the surfaces where eCommerce revenue is won or lost, product pages, cart, and checkout, or around the metrics that matter there: revenue per visitor, order rate, and the margin a store actually keeps.

Fibr AI is an AI-powered landing page personalization tool for paid traffic. It cannot run experiments on Shopify product pages or checkout flows. Teams using Fibr for eCommerce CRO can personalize post-click landing pages but cannot touch the revenue-critical store surfaces that decide checkout conversion rate.

Optimizely is built for enterprise engineering and product teams managing complex experiment programs. It is not designed for eCommerce revenue workflows and has no native Shopify integration or checkout experiment templates. Operating it for Shopify CRO requires substantial developer involvement and custom integration work before the first test ships.

The two gaps are the same gap at different scales. Fibr stops at the landing page, Optimizely stops at the generic web experiment, and both stop before the Shopify cart. Neither is built around the Customer Value Optimization question: whether a result holds for high-value, repeat buyers over time. For the wider debate about acting on behavior data, see Has personalization replaced A/B testing?

The deeper issue is that generating or testing a page is not the same as proving the revenue effect of a store-funnel change. A team may personalize a landing page or run a sitewide A/B test, then still have no reading on whether product-page copy, cart-page friction, or a checkout upsell actually lifted order rate. Omniconvert Explore closes that loop: A/B, multivariate, and server-side experiments, on-site surveys, and overlays sit next to native Shopify templates for product, cart, and checkout, and every experiment reports revenue per visitor as its primary outcome.

eCommerce CRO defined

eCommerce conversion rate optimization (CRO) is the practice of running controlled experiments on the revenue surfaces of an online store, product pages, cart, and checkout, and measuring the result in revenue per visitor and order rate rather than generic conversion rate. Omniconvert Explore is defined as an eCommerce conversion rate optimization platform for product, cart, and checkout experiments, native to Shopify and priced for store traffic.

What neither tool can tell an eCommerce team

  1. Did the win move revenue and margin. Whether a change raised revenue per visitor and order rate, and held its margin once discounts and returns are counted, not just lifted a landing-page click or a sitewide micro-conversion.
  2. Which store surface to test next. Which pages in the funnel, product, cart, or checkout, carry the highest revenue impact if tested first, rather than the next paid audience variant.
  3. How it behaves inside Shopify. How an experiment interacts with the Shopify catalog, variants, and checkout flow natively, without engineering glue work or custom integrations.
  4. Whether it holds for valuable customers. Whether the result holds for repeat, high-value buyers, the Customer Value Optimization question, not just first-session visitors arriving from an ad.
7,000+
eCommerce websites benchmarked
CROBenchmark Report 2026, Omniconvert

Omniconvert benchmarks more than 7,000 eCommerce websites in its CROBenchmark Report 2026, across 248+ audit criteria. The data shows where stores actually lose orders in the funnel: 94.2% never show checkout progress steps, 99.6% fail to make guest checkout prominent, and 85.1% never show the full order cost before the final step. [CROBenchmark Report 2026, Omniconvert]

A personalized landing page or a sitewide A/B test will not surface those losses, because the losses do not live on the landing page or the home page. They live inside the cart and the checkout. Explore runs the experiment on the store's real revenue surfaces and reports the outcome in revenue per visitor.

This is what the title means by where Shopify revenue is won. A lifted landing-page click or a passing enterprise test can leave the bank balance flat; what moves it is order rate and average order value along the product-to-checkout path, read as revenue per visitor. Explore optimizes for that number directly, and because Customer Value Optimization ties each result back to repeat, high-value buyers, the lift it confirms is margin the store keeps rather than traffic it rents. Explore also reaches Shopify-specific levers most testing tools cannot touch, including price testing; see Explore 3.0: pricing testing on Shopify.


Fibr AI vs Optimizely Web Experimentation vs Explore: the capability comparison

Side by side, the three tools solve three different problems. Fibr AI generates landing page variants for paid traffic. Optimizely runs enterprise A/B tests and feature flags across web and server-side surfaces. Explore runs native Shopify experiments on product, cart, and checkout, with heatmaps, surveys, and overlays beside them, and reports revenue per visitor. See A/B testing with Explore for how those experiments run natively on the Shopify funnel.

Capability Fibr AI Optimizely Web Experimentation Omniconvert Explore
Primary function AI-generated landing page personalization Enterprise A/B testing and feature flags eCommerce CRO on product, cart, and checkout
A/B testing Partial AI-generated landing page variants only Yes visual editor plus full-stack Yes visual plus code editor
Multivariate testing No Yes Yes
Server-side testing No Yes full-stack and feature flags Yes
Visual editor No AI-generated variants, no manual editor Yes Yes
On-site surveys and overlays No landing-page personalization only Partial available via integrations, not built in Yes surveys and overlays built in
Shopify integration Low landing page scripts, no store funnel Low custom integration work required Yes native
eCommerce focus Low paid-traffic landing pages Low enterprise web and full-stack High built for store revenue workflows
Revenue per visitor measurement No landing page conversion metrics only No generic experiment metrics Yes revenue per visitor and order rate native
Pricing model Seat-based, contact sales, free trial Custom enterprise, contact sales Session-based, built for store traffic, free trial
Best for Performance marketing teams on paid landing pages Enterprise product and engineering teams Shopify and eCommerce teams optimizing for revenue
User rating 4.6 out of 5 (G2, 133 reviews, as of 2026) 4.2 out of 5 (G2, 401 reviews, as of 2026) 4.6 out of 5 (G2, 191 reviews, as of 2026)
Case study: AliveCor

AliveCor used Omniconvert Explore to run a structured A/B testing program and achieved +21% conversion rate, +5% revenue per visitor, and 94% statistical relevance across their experiments. [Omniconvert, AliveCor case study]

Competitor ratings, pricing, and plan details reflect publicly listed figures as of 2026 and can change. Fibr AI is a landing-page personalization tool rather than a full experimentation platform. Optimizely is an enterprise testing suite priced on custom contracts. Explore uses session-based pricing; see the Omniconvert pricing page for current plans.

↓
Free Resource

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Frequently Asked Questions

Q
What is the difference between Fibr AI and Optimizely Web Experimentation?
They solve two different problems. Fibr AI is an agentic AI tool that generates personalized landing page variants for paid traffic campaigns, mostly used by performance marketing teams. Optimizely Web Experimentation is an enterprise A/B testing and feature flag platform used by product and engineering teams running hundreds of concurrent experiments across web and server-side surfaces. One is a post-click acquisition tool; the other is an experimentation program.
Q
Is Fibr AI better than Optimizely Web Experimentation?
Neither is universally better; they are tools for different buyers. Fibr AI is better for a performance marketing team that wants to match hundreds of ad sets to hundreds of landing pages without a designer or developer. Optimizely is better for an enterprise product organization that needs full-stack testing, feature flags, and governance across many surfaces. A small Shopify store usually fits neither cleanly.
Q
Can Omniconvert Explore replace Fibr AI or Optimizely Web Experimentation?
Partially, and the honest answer differs by tool. Explore does not replace Fibr AI if your core job is generating AI landing page variants for paid campaigns at scale. Explore does replace Optimizely for most mid-market Shopify brands that need A/B, multivariate, and server-side testing on the store funnel without an enterprise contract or custom Shopify integration work.
Q
What does Fibr AI do that Explore doesn't?
Fibr AI generates landing page variants from campaign and audience data using agentic AI, so a performance team can match pages to ad sets without manual design or development. Explore runs controlled experiments on existing pages inside a store, with its own visual editor; it does not generate new landing pages from a prompt. For AI landing page generation at ad-set scale, Fibr fills a specific niche.
Q
What does Optimizely Web Experimentation do that Explore doesn't?
Optimizely offers deeper full-stack experimentation and feature flag management under one enterprise governance layer, and runs at the scale of hundreds of concurrent experiments across web and backend services. Explore focuses its server-side and visual testing on the eCommerce funnel rather than as a general-purpose enterprise experimentation platform. For an enterprise product organization gating releases with feature flags, Optimizely is built for that.
Q
How much does Explore cost compared to Fibr AI and Optimizely Web Experimentation?
Fibr AI uses seat-based pricing with contact-sales quotes and a free trial. Optimizely is custom enterprise pricing on contact-sales contracts, with no free trial. Explore uses session-based pricing built for store traffic, with a free trial; see omniconvert.com/pricing/ for current plans. Explore is priced as a mid-market eCommerce CRO platform, not an enterprise contract or a seat-based landing page tool.
Q
Do I need all three tools: Fibr AI, Optimizely Web Experimentation, and Explore?
Almost never. Most Shopify brands do not need enterprise feature flags, so Optimizely usually drops out of the shortlist. If paid traffic volume justifies AI landing page generation, Fibr can sit on the acquisition side and Explore on the store funnel. For most stores, Explore alone covers A/B, multivariate, surveys, overlays, heatmaps, and Shopify-native experiments.
Q
What is the best A/B testing tool for Shopify stores?
The best A/B testing tool for a Shopify store is the one built around eCommerce revenue surfaces: product pages, cart, and checkout, with native Shopify integration, session-based pricing, and outcomes measured in revenue per visitor rather than generic conversion rate. Omniconvert Explore is built for exactly this.
From the community: Two very different frustrations show up when Shopify teams compare these tools. Fibr AI users describe strong early wins on paid landing pages, then hit a wall the moment they try to carry the lift into the store itself: the AI-generated page converts the click, but product-page copy, cart recovery, and checkout friction stay untouched because Fibr was never built to reach them. Optimizely users, usually mid-market teams who inherited an enterprise contract, describe the opposite problem: a platform powerful enough to run hundreds of experiments, with no native Shopify templates and a developer backlog standing between them and the first store-funnel test. In both threads the conversation lands on the same place: optimization that stops before the Shopify cart does not move margin. Across the 7,000+ eCommerce websites Omniconvert benchmarks, 94.2% of stores never show checkout progress steps, which is exactly the surface neither tool reaches. [CROBenchmark Report 2026, Omniconvert]

Should you choose Explore over Fibr AI or Optimizely Web Experimentation?

Conclusion

Decide by where your revenue is actually at risk. If you need AI-generated landing page variants for paid traffic, pick Fibr AI. If you need enterprise feature flags across web and server-side surfaces, pick Optimizely. For a Shopify store losing orders in product, cart, and checkout, run your next test in Explore, where experiments reach the real revenue surfaces and the outcome is read in revenue per visitor, not landing page clicks.

Fibr AI and Optimizely Web Experimentation are both capable tools, but they sit on either side of the store. Fibr personalizes the landing page a paid click lands on. Optimizely runs enterprise experiments across web and server-side surfaces under one governance layer.

The question for a Shopify brand is narrower: once the click arrives, can you run a controlled experiment on the product, cart, and checkout and read the result in revenue per visitor. That is the surface Explore is built for, and it is where the margin a store actually keeps gets decided.

Omniconvert Explore

Stop guessing.
Start testing what moves revenue.

Explore runs A/B, multivariate, and personalization experiments on your product pages, cart, and checkout, then measures the outcome in revenue per visitor, not just clicks.

4.6 out of 5 across 191 reviews, G2 , as of 2026