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Shopify CRO Agency

craftberry is a Shopify conversion rate optimization agency that uncovers where ecommerce brands lose buyers. Our Shopify CRO experts validate every improvement through A/B testing on the store's own traffic before implementation.

Across 11+ years and 800+ Shopify projects, this research-led approach has improved conversion rates for our clients in the D2C industry. Because every test begins with in-depth research and data analysis, we achieve a 50% success rate in A/B tests.

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4.8Based on 28 Clutch reviews
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Our 4× ROI guarantee.
If you don’t get it, we work for free until you do.

4×

Guaranteed minimum return: at least four times your CRO investment back in added revenue

6 months

Measured on the revenue added in the first six months of the program

€0

Not at 4× yet? We keep working at no extra cost until you are.

Shopify CRO services. Pick the right fit for your store.

Most brands start with a Shopify CRO audit, then move into an ongoing program.
Prefer to run CRO yourself? SignalVeritas, our self-serve AI CRO agent, designs and edits your store for you.

Shopify CRO audit

Step 1

Ongoing CRO program

Step 2 · Most chosen

SignalVeritas

Self-serve AI CRO agent
Best for
A clear plan before you test
Established businesses looking to maximize their traffic
Teams that want to run CRO themselves
Research
✓GA4 funnel, heatmaps, recordings, UX review
✓Continuous research and test backlog
✓8 data sources, 54-point AI store audit
A/B testing
Roadmap ranked by impact and effort
3–5tests a month on your traffic
Evidence-cited hypotheses ranked by PIE score
Design, build and QA
Not included
✓In-house, winners live within days
✓Designs and edits your store for you
Commitment
One-off project
4×minimum ROI, guaranteed
Self-serve, no agency contract
Start with an audit
Discuss your CRO program
Explore SignalVeritas

We post our A/B tests. Explore some of them.

Each result comes from a controlled A/B test run on the client’s own traffic. Every test links to its hypothesis, variant and numbers.

See all A/B tests
Compatibility page
+58.3%revenue per visitor, desktop

If the compatibility checker leads straight to the matching product, more desktop shoppers will buy.

Industry: Automotive techSee the A/B test
Landing page
+42.4%revenue per visitor

If the app subscription gets its own landing page with one clear next step, more visitors will subscribe.

Industry: Automotive techSee the A/B test
Collection page
+28.2%revenue per visitor

If product cards show the saving, machine fit and key features, shoppers will compare faster and buy more.

Industry: Sleep & healthSee the A/B test
Homepage
+20.6%revenue per visitor

If the homepage hero explains the store instead of one product, more visitors will start shopping.

Industry: Sleep & healthSee the A/B test

One in-house team behind every Shopify CRO test

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craftberry

Where every winning test comes together.

Shopify Premier Partner

Our Shopify CRO process in 7 steps

We start CRO 1.5 to 2 months after a launch or migration, once there is real data.

Fix the data first.

We validate GA4, Shopify Analytics and attribution, so every test result can be trusted.

SignalVeritas: AI CRO for maximum results and velocity

SignalVeritas is craftberry’s self-serve AI CRO agent for Shopify. It designs and edits your store, and links every change to the customer evidence behind it.

Explore SignalVeritas

  • 8 data sources

    Reviews, session behaviour, analytics, site speed, visual analysis, checkout, email and surveys in one workflow.

  • Customer voice themes

    16,000+ customer inputs grouped into 282 themes in one haircare program.

  • 54-point store audit

    Every funnel step ranked by impact and effort. Your data stays in the EU.

  • Evidence-backed tests

    Hypotheses scored on PIE, then A/B tested on your traffic. One lifted revenue per visitor by 28.2%.

Our Shopify CRO at a glance

Who we work with, what a program includes and how we measure success, in six short answers.

Get your free CRO plan

craftberry CRO in numbers:

$2M+ revenue brands3–5 tests a month95% significanceUp to 3.7× conversion rate35 winning tests in 2026

Mid-market and enterprise Shopify and Shopify Plus DTC brands, typically generating $2M+ in annual revenue, processing 1,000+ orders per month, and investing $10K+ per month in paid media. Clients include Enhance Auto, Mi Amante, Shelly, Moon Nude and Carista.

3–5 A/B tests a month, each researched, designed, built and QA’d by our in-house team. Winning variants go live on your Shopify theme within days.

Conversion rate grew 3.7× for Enhance Auto, 3.2× for Carista and 1.9× for Moon Nude during their programs. Single tests have lifted revenue per visitor by up to 58.3%.

In 2026 alone, we shipped 35 winning A/B tests to live Shopify stores across automotive, beauty, electronics, health and fashion accessories.

We judge every test on revenue per visitor first, then conversion rate and AOV. A variant ships only after reaching 95% statistical significance over at least two full business cycles.

SignalVeritas for research, Intelligems for A/B testing, GA4 and Shopify analytics for the funnel, and Microsoft Clarity for session recordings and heatmaps.

Explore SignalVeritas

What our clients say

Real feedback from brands we’ve helped grow, scale, and evolve on Shopify.

View All
Clutch
“They also continuously monitored conversion and engagement metrics while regularly running A/B tests.”
Richard KrolikowskiE-Commerce Consultant, Midi Health
Read the Review
Clutch
“A modern looking e-commerce store, which helped increase our conversion rate.”
Founder & CEONutrition & Supplements E-Commerce
Read the Review
Clutch
“Our conversion rate improved a lot due to the better UX and UI of the website.”
Andrey PetrovExecutive & Marketing Director, BrainDonors
Read the Review
Clutch
“After fixing the tracking issues, our ads and campaigns have been able to better optimize and track where our conversions are coming from.”
Mimi TjiaOperations Manager, DTC Skincare Brand
Read the Review
View All

Common questions Shopify brands ask before hiring a CRO agency.

We help brands grow through connected strategy, technology, creative, and marketing.

Get a free CRO audit
A Shopify CRO agency finds why visitors leave a store without buying, tests fixes on real traffic and ships the changes that lift revenue per visitor. At craftberry, research, UX design, development and QA all sit in one in-house team, so winning tests go live in days.
Our Shopify CRO retainers start at around USD 3,500 per month for research and 3 to 5 A/B tests, with development and implementation charged separately. We usually begin with a one-off CRO audit, then move to a monthly retainer. The exact figure depends on your traffic, the number of storefronts and the amount of custom development each test requires.
Enhance Auto reached a 3.7× conversion rate, Carista 3.2× and Moon Nude 1.9× during their CRO programs with us. Individual tests include a 58.3% lift in desktop revenue per visitor from a guided compatibility checker and a 35.4% lift from homepage trust signals. Every test is published with its hypothesis and numbers in our A/B test library at craftberry.co/ab-tests.
In most of our programs, quick wins appear within the first month or two, once we have resolved the foundational friction. Compounding, statistically robust improvement usually develops over three to six months as winning tests build on one another. Higher-traffic Shopify stores reach reliable results faster.
Yes. CRO strategists, UX designers, Shopify developers and QA specialists all work at craftberry. The team that finds the problem also builds and ships the fix.
Yes. SignalVeritas is craftberry’s self-serve AI CRO agent for Shopify. It researches your store, designs improvements and edits your store for you. Brands that want a dedicated team behind every test can work with craftberry on a CRO audit or an ongoing testing program.
A redesign changes many things at once and assumes they will work. CRO changes one thing at a time and tests it on your own traffic first, so you keep only what lifts revenue. When a store needs a full rebuild, we use CRO research to shape the redesign.
Yes. We guarantee a minimum return of four times your CRO investment in added revenue, measured on the revenue added in the first six months of the program. If we are not at 4× yet, we keep working at no extra cost until we are.
They can if handled poorly. Because our own developers run the tests, we protect page speed and SEO throughout the process, and we treat site-speed work as a core part of CRO. In many of the Shopify stores we work on, CRO improvements also improve Core Web Vitals.

Ready to uncover missed opportunities and boost purchases?

  • CRO for Shopify Plus & Shopify
  • Dedicated in-house CRO, UX/UI, and development teams
  • Shopify Premier Partner with 11+ years of experience
  • Every change validated through A/B testing on your own traffic
  • Research-led testing, with most concluded tests winning
  • Backed by a revenue guarantee

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Projects since 2015
800+
In-house experts
30+
Client revenue 2024
$450M+
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