Shopify Plus CRO
A Shopify Plus CRO agency. Built for stores that have outgrown simple patches.
Conversion rate optimisation for Shopify Plus brands, including checkout extensibility work when the test needs it. We still judge the programme on revenue per visitor.
CRO for Shopify Plus brands, judged on revenue per visitor.
Client results
Work from long-term Shopify partnerships.
The problem
Plus is not a shortcut. It is a chance to test the checkout properly.
Shopify Plus gives you more room to change checkout, offers and custom apps. That only helps if the tests are designed, built and read with the same discipline as the rest of the funnel.
How we work
Built for what happens after the click.
Most brands don't need more traffic. They need the traffic they already pay for to convert.
-
After the click
Once the ad is working, the levers left are after the click: the presell, the product page, the offer and the checkout.
-
People-managed CRO
One team. No handovers. The people who plan the work build it, on the CRO & Scale Plan.
-
Driven by the data
Research is stored in the brand's CRO Brain. Builds are supported by PMD Cortex AI and checked by an engineer.
-
A programme, not one lucky win
Winners roll out sitewide, from product page to checkout. The result goes back into research, so the next test starts smarter.
How we work
The same CRO programme, with Plus-ready engineering.
Research is stored in the brand's CRO Brain. Builds are supported by PMD Cortex AI and checked by an engineer.
-
01
Research
We start with the customer: reviews, support tickets, ads and store data, then store what we learn in the brand's CRO Brain.
PMD Cortex AI · CRO Brain -
02
Plan the tests
The roadmap is built around revenue per visitor and the offer, not vanity conversion rate alone.
-
03
Design and build
Pages and tests are designed, built in your theme and checked by an engineer. PMD Cortex AI supports the work. The team stays responsible for delivery.
PMD Cortex AI · CRO Brain -
04
Test and read
Tests run in your theme. We read revenue per visitor first, and we say when a result is only directional.
-
05
Roll out and learn
Winners go sitewide, and the result goes back into the CRO Brain so the next test starts smarter.
PMD Cortex AI · CRO Brain
Shopify A/B testing
Shopify A/B testing, including checkout blocks when you need them.
Tests run inside your theme. Checkout block testing sits on the Plus CRO plan of the testing app we built, and covers upsells, images, text, trust badges and callouts. Ordinary tests do not need that plan.
A month-long cart drawer test on a Shopify store saw revenue per visitor rise 16%, from $2.01 to $2.33, with conversion rate up 9% and average order value up 5%. The read was directional, not a closed case, and the recommendation was to ship and measure again.
This is an anonymised Shopify A/B testing example from the app, labelled directional. It is not a PM Digital client case study.
Starting free. Pro CRO from $49 a month.
Case studies
From our CRO and Scale Plan.
These are partnership results, not app case studies.
Cadence+389% revenue growth in 12 monthsA long-term CRO & Scale Plan, including a rebuild of both Shopify stores. Store-wide figures, so they include Cadence's own marketing too.Read the case study
Avantera97% of orders on subscription, up from 90%One offer test on our CRO & Scale Plan.Read the case study
Who we help
Shopify Plus brands that want the funnel measured properly.
-
Shopify Plus brands
Stores that need checkout work, custom development and a testing programme, not only a new landing page.
-
Teams already buying traffic
If the ads are working, the work left is after the click, including checkout when Plus allows it.
The founder and the team
Paddy McLarnon, founder, and the team that does the work.
Paddy McLarnon founded PM Digital and has been a name in CRO for the last four years. He takes the first call with every brand himself, and stays close to the strategy. He has spoken at DTC Growth Summit in Miami and New York, and hosts the Funnel First podcast.
Meet the agency
Our team
The in-house team behind the work.
Your pod does the work, and the whole team backs it. Plus you, in a dedicated Slack channel with all of them.
FAQs
Frequently asked questions
Do you work with Shopify Plus?
Yes. We work across Shopify and Shopify Plus, including checkout extensibility and custom development when the brief needs it.
Is checkout testing only for Plus?
Checkout block testing in the app we built sits on the Plus CRO plan. We do not state whether a merchant also needs a Shopify Plus store for those blocks. Ordinary tests do not need that plan.
How is this priced?
A CRO sprint is £4,000 one-off. The CRO & Scale Plan is £6,000 a month. CRO and creative starts from £10,000 a month.
Work with us
Want a CRO programme that can use what Plus is for?
Book a discovery call. We will look at your checkout, offers and product pages, and tell you what we would test first.
Work with PM Digital.
Book a call with Paddy, our founder. It's a chat to see where the brand is and what it needs. We'll do an audit only if it's needed.
- CRO sprint £4,000 one-off
- The CRO & Scale Plan £6,000 / month
- CRO and creative From £10,000 / month
The 90-day guaranteeIf we don't get you a winning test in 90 days, we work the next 30 free until we do.See terms