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

AB Smartly vs LaunchDarkly vs Explore (2026): SDKs vs Shopify Revenue

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
AB Smartly, LaunchDarkly, and Omniconvert Explore compared: real-time engineering experimentation and feature flag management versus Shopify-native eCommerce CRO measured in revenue per visitor.
Answer Capsule

AB Smartly is a real-time experimentation platform built by former Booking.com engineers, with SDK-based assignment and a warehouse connector. LaunchDarkly is the market-leading feature flag platform for engineering teams running gradual rollouts and controlled releases. Both require developer work. Omniconvert Explore is the Shopify-native eCommerce CRO platform: it runs product, cart, and checkout experiments measured in revenue per visitor.

Key Takeaways
  • AB Smartly is a real-time experimentation platform built by former Booking.com engineers, with a 4.8 out of 5 G2 rating across 45 reviews. [G2, 2026]
  • LaunchDarkly is the market-leading feature flag management platform, with a 4.5 out of 5 G2 rating across 712 reviews, the largest review base in this space. [G2, 2026]
  • Both are engineer-owned platforms: neither has a visual editor, and every experiment starts as an SDK integration or a feature flag rollout.
  • Neither runs experiments natively on the Shopify product page, cart, or checkout, and neither reports the outcome in revenue per visitor.
  • Omniconvert Explore is a Shopify-native eCommerce CRO platform: it runs A/B, multivariate, and checkout experiments through a visual editor and measures the result in revenue per visitor.

Teams comparing AB Smartly vs LaunchDarkly are usually choosing an engineering-owned platform for testing or releasing software. AB Smartly leads with real-time experiment results and a warehouse connector, built by the team behind Booking.com's programme. LaunchDarkly leads with feature flag management, gradual rollouts, and deep CI/CD integration for engineering teams at scale. Both are strong for developer-led work, but neither is designed for a Shopify marketing team to run product page or checkout experiments without SDK integration. This page covers what each does well, the gap they share for eCommerce, and when Omniconvert Explore is the right layer.

What is AB Smartly, and what is it actually good at?

AB Smartly is a real-time experimentation platform built by former Booking.com engineers. It uses SDK-based assignment, exposes results as they arrive rather than in batch, and connects directly to a data warehouse for downstream analysis. It is built for high-velocity engineering programmes that treat testing as continuous infrastructure. [AB Smartly, 2026]

AB Smartly is an engineering platform built by practitioners of one of the largest experimentation programmes in the industry. It holds a 4.8 out of 5 rating on G2 across 45 reviews. [G2, 2026] Its strength is speed and rigour together: results update in real time rather than in a nightly job, and the platform is designed for teams that run hundreds of parallel experiments without waiting on a batch pipeline.

Assignment happens through SDKs, with server-side splits and advanced statistical methods. The warehouse connector lets a data team join experiment exposure to any downstream metric that already lives in Snowflake, BigQuery, or Redshift.

Real-time experimentation defined

Real-time experimentation streams experiment assignment and outcome events as they happen, so exposures and metrics update continuously instead of running as a scheduled batch. AB Smartly does this well for engineering teams shipping many parallel tests. It is an execution and analysis layer for developer-owned code, distinct from running a controlled revenue experiment on Shopify product, cart, and checkout pages through a marketer-accessible interface.

Where AB Smartly is genuinely strong

  • Real-time results: exposures and metrics update continuously, not in a nightly batch.
  • Booking.com heritage: statistical methods and program design shaped by one of the largest testing programmes in the industry.
  • Warehouse connector: joins experiment exposure to metrics already defined in Snowflake, BigQuery, or Redshift.
  • Server-side and SDK based: scales for high-velocity engineering programmes running many parallel tests.

Where AB Smartly hits its ceiling for an eCommerce store

  • No visual editor: variants ship through code and SDKs, not a WYSIWYG a marketer can use.
  • No native Shopify integration: nothing wired to product pages, cart, or checkout out of the box.
  • Engineering-priced: custom pricing designed for engineering-led organisations, not for a self-serve CRO budget.
  • No multivariate testing: the platform does not run MVT natively.
  • Generic outcome model: no concept of revenue per visitor as a first-class metric on the store funnel.

What is LaunchDarkly, and what is it actually good at?

LaunchDarkly is the market-leading feature flag management platform. It lets engineering teams wrap new code in flags, roll it out gradually to a target segment, and turn a release off in seconds if something breaks. It is used by major technology companies for managing complex release programmes at scale, with deep hooks into CI/CD and monitoring tools. [LaunchDarkly, 2026]

LaunchDarkly is a release engineering platform first, and an experimentation platform second. It holds a 4.5 out of 5 rating on G2 across 712 reviews, the largest review base in this space. [G2, 2026] Its strength is control: an engineering team can ship code behind a flag, target a specific customer segment, ramp exposure gradually, and kill a bad release instantly without a hotfix deploy.

The experimentation layer is built on top of that flag infrastructure. Assignment runs through SDKs, and metrics are wired up through the same events the engineering team already emits. It is not a visual editor, and it does not treat a product page as a first-class surface.

Feature flag management defined

Feature flag management is the practice of wrapping new code paths in runtime toggles so engineering can control who sees a feature, ramp it up gradually, and turn it off quickly if it breaks. LaunchDarkly does this well for engineering teams shipping continuous releases. It is a release control and delivery layer for developer-owned code, distinct from running a controlled revenue experiment on Shopify product, cart, and checkout pages through a marketer-accessible interface.

Where LaunchDarkly is genuinely strong

  • Market leader in feature flags: the standard for engineering teams managing feature releases at scale.
  • Gradual rollouts and targeting: ramp exposure by segment, geography, or user attributes, and kill a release in seconds.
  • Deep CI/CD integration: plugs into the engineering toolchain, monitoring, and observability platforms.
  • Server-side and multi-platform SDKs: ships across web, mobile, backend, and edge, one flag store across the stack.

Where LaunchDarkly hits its ceiling for an eCommerce store

  • No visual editor: every experiment ships as an SDK integration, not a change a marketer can make in an interface.
  • No native Shopify integration: nothing wired to product pages, cart, or checkout out of the box.
  • Seat-based enterprise pricing: priced for engineering headcount, not for a self-serve CRO budget.
  • No multivariate testing: the platform runs feature flag experiments, not native MVT.
  • Generic outcome model: no concept of revenue per visitor as a first-class metric on the store funnel.

What AB Smartly and LaunchDarkly cannot do for an eCommerce store

AB Smartly and LaunchDarkly sit at different points on the same axis: both are engineer-owned platforms with no visual editor. Both need code to ship a variant, and neither is built around the surfaces where eCommerce revenue is won or lost, product pages, cart, and checkout, or the metric that matters there: revenue per visitor.

AB Smartly is built for engineering teams running high-velocity, real-time server-side tests, and the Booking.com pedigree shows in how the platform treats experimentation as continuous infrastructure. On a Shopify store the same shape is a problem. Every product page, cart, and checkout experiment starts as an SDK ticket, and the queue is set by engineering. The A/B test the CRO lead wanted this week ships when engineering ships it.

LaunchDarkly starts from a different premise: the primary job is release control, not experimentation. Feature flags, gradual rollouts, and targeting are the market-leading strength, and for a mobile app team or a SaaS platform that is exactly the right shape. On a Shopify store the same shape is still a problem. Testing a new checkout layout means wrapping it in a flag, wiring conversion tracking through the engineering event stream, and asking a developer every time the marketer wants to iterate.

The gap the two share is the eCommerce one. These are engineer-owned platforms, but they are not eCommerce CRO platforms. Neither treats the product-to-checkout path as the primary surface, and neither reports the result in revenue per visitor. For the wider context on how testing programmes actually move revenue, see Has personalization replaced A/B testing?

The deeper issue is that ownership of the test sits far from the person who owns the revenue number. A CRO lead has a hypothesis about the cart page and, in either tool, needs an engineer to write assignment code, define an event, and later stitch results back to order rate. Omniconvert Explore collapses that loop: a visual editor for product page and checkout variants, native Shopify integration, on-site surveys and overlays in the same platform, and the outcome measured in revenue per visitor. The person who owns the store's growth number owns the test.

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. 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 variant raised revenue per visitor and order rate, and held its margin once discounts and returns are counted, not just moved an engineering event or a flag exposure metric.
  2. Which surface to test first. Which pages in the store funnel (product, cart, checkout) carry the highest revenue impact if tested next.
  3. How it behaves in checkout. How an experiment interacts with the Shopify catalog, variants, and checkout flow natively, without SDK glue work or a feature flag deployment.
  4. Whether it holds for valuable customers. Whether the result holds for repeat, high-value customers, the Customer Value Optimization question, not just for first-session visitors.
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 findings show where stores actually lose orders: 99.6% fail to make guest checkout visible and prominent, and 94.2% never show checkout progress steps to the shopper. [CROBenchmark Report 2026, Omniconvert]

Those are fixes a CRO lead can hypothesise, mock up, and want to test today. In AB Smartly or LaunchDarkly, the same fix is an SDK ticket or a feature flag rollout, sitting in a queue set by engineering. Explore runs the experiment on the real revenue surfaces and reports the outcome in revenue per visitor, without an SDK integration or a flag deployment between the hypothesis and the result.

This is what the title means by SDKs vs Shopify revenue. Real-time rigour or feature flag control on a metric your engineering team owns is not the same as a lift on the number that pays for the store. Explore optimizes for revenue per visitor 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 engineering-first tools cannot touch, including price testing; see Explore 3.0: pricing testing on Shopify.


AB Smartly vs LaunchDarkly vs Explore: the capability comparison

Side by side, the three tools sit at different points on the software lifecycle. AB Smartly is the real-time execution and analysis layer for engineering teams shipping many parallel tests. LaunchDarkly is the release control and feature flag layer for engineering teams managing complex rollouts. Explore is the eCommerce CRO layer for the store team that owns product, cart, and checkout, and is judged on revenue per visitor. See A/B testing with Explore for how those experiments run natively on the Shopify funnel.

Capability AB Smartly LaunchDarkly Omniconvert Explore
Primary function Real-time engineering-led experimentation Feature flag management and controlled releases eCommerce CRO on product, cart, and checkout
A/B testing Yes SDK-based, no visual editor Yes SDK-based feature flag experiments Yes visual editor plus code
Multivariate testing No No Yes
Server-side testing Yes core capability Yes core capability Yes
Visual editor No code and SDKs only No code and SDKs only Yes WYSIWYG for marketers
On-site surveys and overlays No No Yes surveys and overlays built in
Shopify integration Low no native connector Low no native connector Yes native
eCommerce focus Low built for engineering teams Low built for engineering teams High built for store revenue workflows
Pricing model Custom, contact sales, enterprise Seat-based, contact sales, enterprise Session-based, built for store traffic, free trial
Best for Engineering teams wanting real-time server-side experimentation Engineering teams managing feature releases at scale Shopify and eCommerce teams optimizing for revenue
Case study: AliveCor

AliveCor used 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. AB Smartly is an engineering-owned experimentation platform and LaunchDarkly is a feature flag management platform, not marketer-accessible eCommerce CRO tools. Explore uses session-based pricing; see the Omniconvert pricing page for current plans.

Free Resource

Get the full CROBenchmark data behind these stats: 7,000+ websites, 15+ industries, 248+ audit criteria, 100+ CRO experts. See exactly where eCommerce growth teams are losing margin in 2026.

Get the CROBenchmark Report

Frequently Asked Questions

Q
What is the difference between AB Smartly and LaunchDarkly?
Both are engineer-owned platforms, but they lead with different jobs. AB Smartly is an experimentation platform: it was built by former Booking.com engineers, uses SDK-based assignment, streams exposures and metrics in real time, and connects to a data warehouse for downstream analysis. LaunchDarkly is a feature flag management platform: it wraps new code in runtime toggles, ramps exposure by segment, and lets engineering kill a bad release instantly. The core difference is intent: continuous experimentation versus controlled software delivery.
Q
Is AB Smartly better than LaunchDarkly?
Neither is universally better; it depends on the primary job. AB Smartly is the stronger fit if engineering wants continuous, real-time server-side experimentation with Booking.com-grade methodology. LaunchDarkly is the stronger fit if engineering wants market-leading release control, gradual rollouts, and targeting at scale, with feature flag experiments layered on top. For a Shopify marketing team without either need, both leave the same gap.
Q
Can Omniconvert Explore replace AB Smartly or LaunchDarkly?
For an eCommerce store, in most cases yes. Explore runs A/B, multivariate, server-side, and checkout experiments on the Shopify funnel through a visual editor accessible to marketers, and reports outcomes in revenue per visitor. It does not replace AB Smartly as a real-time server-side platform for engineering products or LaunchDarkly as a release-control feature flag system, but for the job of running store experiments it removes the need for either.
Q
What does AB Smartly do that Explore doesn't?
AB Smartly streams real-time experiment results and is built for engineering teams running many parallel server-side tests at Booking.com-scale velocity. Explore does not stream exposures as raw real-time infrastructure or plug into a data warehouse for downstream engineering analysis. If your engineering team needs a real-time server-side platform tuned for continuous product experimentation, AB Smartly is built for that.
Q
What does LaunchDarkly do that Explore doesn't?
LaunchDarkly is a full feature flag management platform: gradual rollouts, targeting rules by segment or attribute, kill switches, and deep CI/CD integration across web, mobile, backend, and edge SDKs. Explore does not manage software feature releases or wrap engineering code paths in runtime toggles. If your engineering team needs the market standard for feature flag control at scale, LaunchDarkly is built for that.
Q
How much does Explore cost compared to AB Smartly and LaunchDarkly?
AB Smartly uses custom, contact-sales pricing built for engineering-led enterprises. LaunchDarkly uses seat-based, contact-sales pricing built for engineering headcount. 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 full eCommerce CRO platform, not as an engineering release-management or experimentation tool.
Q
Do I need all three tools: AB Smartly, LaunchDarkly, and Explore?
Almost never. Engineering teams that already run LaunchDarkly rarely adopt AB Smartly on top, since both are SDK-driven and the flag platform can host simple experiments. For a Shopify store, Explore covers product, cart, and checkout experiments with a visual editor, surveys, and overlays in one platform, so it can replace an engineering-first testing tool rather than sit alongside it. Some enterprises keep LaunchDarkly for release control and pair it with Explore for eCommerce CRO.
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: The pattern with these two is the shape of the queue a CRO lead ends up in. Stores that adopted AB Smartly because engineering wanted Booking.com-grade real-time infrastructure find every checkout hypothesis becomes an SDK ticket: the platform is fast, but the queue in front of it is not, and marketing waits for engineering to prioritize the test. Stores whose engineering team already runs LaunchDarkly for release control hit the same wall from a different angle: the marketer proposes a cart variant, engineering wraps it in a flag, targeting and metric wiring wait on a sprint, and the test the store owner wanted this week ships next month. In both threads the conversation lands on the same place: the store bought engineering-grade infrastructure and still cannot ship a checkout test this week. Across the 7,000+ eCommerce websites Omniconvert benchmarks, 99.6% still fail to make guest checkout visible and prominent, the kind of fix that stays in the backlog when only engineering can push it. [CROBenchmark Report 2026, Omniconvert]

Should you choose Explore over AB Smartly or LaunchDarkly?

Conclusion

Decide by who runs your tests. If your engineering team wants real-time experiments with Booking.com-grade statistics, AB Smartly serves them. If your engineering team needs feature flag control and gradual rollouts at scale, LaunchDarkly serves them. But a Shopify marketing or CRO team cannot ship variants on the product page or checkout in either tool without developer work. For a store, run your next test on the product-to-checkout path in Explore and read the result in revenue per visitor.

AB Smartly and LaunchDarkly are both strong at what they do. AB Smartly brings real-time engineering rigour shaped by the Booking.com programme. LaunchDarkly is the market-leading feature flag platform, used by major technology companies for release control at scale.

The question for a store is narrower: once you have a hypothesis about the cart or checkout, can a CRO lead ship the variant, measure the result in revenue per visitor, and answer whether the win holds for high-value repeat customers, without waiting on an engineering ticket. That is the surface Explore is built for.

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.