SHOPIFY PLUS DESIGN & DEVELOPMENT
Shopify Plus Design & Development Agency for Conversion-Optimized DTC Ecommerce Stores
The average Shopify store converts at 1.4%. Conversion Design Shopify Plus stores consistently convert at 2.0–3.5%+ through custom theme design, mobile-first development, 96/100 PageSpeed scores, sub-1.2-second load times, and a CRO process built into every product page and checkout flow from day one.
Conversion-optimized Shopify Plus builds from €5,600. Used by 200+ DTC ecommerce brands. Rated 4.9/5 on Clutch.
From €5,600
Custom Shopify Plus Builds
Conversion-optimized builds from €5,600 for theme-based stores. Mid-range custom builds €20,000–€50,000. Headless from €30,000.
96/100
PageSpeed Score
Every store we build targets 96/100 PageSpeed through optimized images, clean Liquid code and a minimal app stack.
< 1.2s
Average Load Time
Sub-1.2-second load times across desktop and mobile. Sites loading in one second convert three times better than five-second sites.
2.0 to 3.5%+
Average Conversion Rate
Our Shopify Plus stores convert at 2.0–3.5%+ against the 1.4% industry average, measurable within 60 to 90 days of launch.
(01) OVERVIEW
Why choose a conversion-focused Shopify Plus design and development agency?
Most Shopify Plus design agencies build beautiful stores. We build Shopify Plus stores that convert. The difference shows up in revenue: a store doing $500K a year at a 1.4% conversion rate that lifts to 2.5% generates an additional $390,000 a year, from the same traffic, the same products and the same ad spend.
Every project follows our four-step CRO process: conversion audit, conversion-focused design, Shopify Plus development with speed optimisation, then launch with A/B testing infrastructure. We do not bolt CRO on after launch. It goes in from pixel one, through benefit-first product pages, friction-free checkout, mobile-first UX and 96/100 PageSpeed scores on every store.
Beyond design and development we handle ERP and CRM integrations, payment and tax setup across markets, custom Shopify apps when off-the-shelf does not fit, and ongoing CRO testing from €500 a month. For brands running paid ads we produce the creative through the same senior team, so the visual continuity from ad to store to checkout lifts ROAS and conversion rate together.
(02) ROI CALCULATOR
CRO revenue estimator.
Model what a conversion rate lift is worth on your current traffic before you talk to us.
Inputs
Result
+€1.1M
Additional revenue per year
(03) FEATURES
What's included in every Shopify Plus design and development project
Custom Shopify Plus theme design
Pixel-perfect custom theme design matched to your brand visual system. No premium themes, no generic templates.
- //Conversion-tested benefit-first hierarchy
- //Strategic social proof placement
- //From €5,600 for theme-based builds
Headless Shopify Plus development
Fully headless Shopify Plus builds with custom front-ends in React, Next.js, Hydrogen or Webflow.
- //Maximum design flexibility
- //Sub-1-second load times
- //From €30,000
Sub-1.2s load times and 96/100 PageSpeed
Every Shopify Plus store we build targets 96/100 PageSpeed scores and sub-1.2-second load times.
- //Optimised image pipelines and lazy loading
- //Minimal app stack, clean Liquid code
- //1s sites convert 3x better than 5s
Mobile-first ecommerce development
More than 70% of DTC traffic is mobile. We design and develop mobile-first, then enhance for desktop.
- //Touch-friendly tap targets, sticky add to cart
- //One-handed checkout flows
- //Mobile gap reduced to 20–30%
Conversion-designed product pages and checkout
Every product page uses our conversion-design methodology: benefit-first hierarchy and friction-free checkout.
- //2.4x higher conversion vs feature-first
- //Shopify Plus Checkout Extensibility
- //Upsells, cross-sells and bundles for AOV
ERP, CRM and app integrations
Custom integrations with NetSuite, SAP, HubSpot, Salesforce, Klaviyo, Postscript, Yotpo, LoyaltyLion, Recharge and custom APIs.
- //Bidirectional data sync
- //Automated event-triggered workflows
- //Custom Shopify apps from €8,000
Built-in ecommerce CRO and A/B testing
CRO is not an add-on. It is built into every Shopify Plus build from pixel one.
- //A/B testing infrastructure at launch
- //Strategic social proof placement
- //2.0–3.5%+ conversion within 60–90 days
SEO foundation and multi-market setup
Every store launches with proper SEO architecture and multi-market payment, shipping and tax setup.
- //Semantic HTML, meta tags, structured data
- //301 redirect strategy for migrations
- //Multi-currency, multi-language, Shopify Markets
(04) PROCESS
The 4-step Shopify Plus design and development process
01
Discovery and conversion audit
We analyse your current store, traffic, conversion benchmarks, customer journey and competitive positioning, then map a build that addresses the highest-impact CRO opportunities. For brands migrating we audit data structure, integrations and SEO footprint. Output is a scope document with timeline, cost breakdown and expected conversion outcomes. Free with every project.
01
Discovery and conversion audit
We analyse your current store, traffic, conversion benchmarks, customer journey and competitive positioning, then map a build that addresses the highest-impact CRO opportunities. For brands migrating we audit data structure, integrations and SEO footprint. Output is a scope document with timeline, cost breakdown and expected conversion outcomes. Free with every project.
02
Conversion-focused design
Custom theme design using our conversion methodology: benefit-first product hierarchy, social proof above the fold, friction-free checkout and mobile-first UX. Every page is designed with conversion data from 200+ DTC brands. You see comps in week one to two, full design system locked in week three to four on mid-range builds.
03
Development and speed optimisation
Custom Liquid development targeting sub-1.2-second load times and 96/100 PageSpeed. Clean code, optimised image pipelines, lazy loading and a minimal app stack. ERP, CRM, email and analytics integrations configured, plus multi-market payment, shipping and tax. Headless builds ship a custom React, Next.js or Hydrogen front-end.
04
Launch, A/B testing and iteration
Zero-downtime DNS cutover during low-traffic hours and 48-hour post-launch monitoring of checkout, payment, integrations and performance. A/B testing infrastructure deployed at launch. Most brands see measurable conversion improvements within 60 to 90 days. Ongoing CRO from €500 a month.
(05) PRICING
Shopify Plus design and development pricing
Every build is scoped as a fixed-price engagement after a free conversion audit. Pricing depends on complexity, custom features and integration count. Hourly development is €75 an hour with volume discounts.
Theme-based Shopify Plus build
INVESTMENT€5,600–€15,000
TIMELINE2–4 weeks
BEST FORBrands at $500K–$1M a year, fast launch
Custom Shopify Plus build
INVESTMENT€20,000–€50,000
TIMELINE6–10 weeks
BEST FORBrands at $1M–$5M a year, full custom design
Mid-range Plus with ERP and integrations
INVESTMENT€40,000–€80,000
TIMELINE8–12 weeks
BEST FORBrands with complex tech stacks
Headless Shopify Plus build
INVESTMENT€30,000–€100,000
TIMELINE10–16 weeks
BEST FORPremium brands needing maximum design flexibility
Enterprise Shopify Plus
INVESTMENT€100,000–€150,000+
TIMELINE16–24+ weeks
BEST FORMulti-storefront, B2B, complex international setups
Hourly Shopify Plus development
INVESTMENT€75/hour
TIMELINEOngoing
BEST FORIterations, new features, A/B test implementation
Most DTC brands at $1M–$5M a year invest €20,000 to €50,000 in the initial build, then €500 to €2,500 a month in maintenance and CRO. A store converting at 2.5% instead of 1.4% means 78% more revenue from the same traffic. Most builds pay for themselves within two to six months.
(07) TESTIMONIALS
What DTC brands say about our Shopify Plus builds
Rated 4.9 out of 5⭐ on Clutch across 200+ DTC and ecommerce brands.
““We brought Conversion Design in to optimise our Shopify Plus store and improve our conversion rate. They identified the exact drop-off points in our checkout flow and redesigned those pages using CRO-tested patterns. Measurable increases in online sales conversions followed within weeks.””
““Conversion Design rebuilt our Shopify Plus store from scratch: custom theme design, checkout flow optimisation and ERP integration all handled in-house. What impressed us most was how tightly design and development worked together. The store launched on time, hits 96/100 on PageSpeed, and our checkout completion rate improved measurably in the first month.””
““We used Conversion Design for both a Shopify Plus store redesign and a Conversion Creatives retainer. Having the store design and the ad creatives handled by the same team was the biggest advantage. The landing pages were designed alongside the creatives, so the visual continuity from ad to store to checkout was seamless.””
(06) COMPARISON
Custom Shopify Plus vs premium themes vs freelancer builds
Average conversion rate
PREMIUM SHOPIFY THEME1.0–1.8%
CONVERSION DESIGN2.0–3.5%+
FREELANCER1.0–2.0% (varies)
PageSpeed score
PREMIUM SHOPIFY THEME40–70, theme dependent
CONVERSION DESIGN96/100
FREELANCERVaries
Mobile load time
PREMIUM SHOPIFY THEME3–5 seconds
CONVERSION DESIGNUnder 1.2 seconds
FREELANCER2–5 seconds
Custom design
PREMIUM SHOPIFY THEMENo, template based
CONVERSION DESIGNPixel-perfect custom
FREELANCEROften template based
CRO methodology
PREMIUM SHOPIFY THEMENone
CONVERSION DESIGN4-step CRO process built in
FREELANCERRare
A/B testing infrastructure
PREMIUM SHOPIFY THEMENone
CONVERSION DESIGNDeployed at launch
FREELANCERRare
ERP and CRM integration depth
PREMIUM SHOPIFY THEMELimited
CONVERSION DESIGNFull custom integration
FREELANCERLimited
Cross-brand insights
PREMIUM SHOPIFY THEMENone
CONVERSION DESIGN200+ DTC brands
FREELANCERSingle brand
Project cost
PREMIUM SHOPIFY THEME$200–$400 theme plus dev
CONVERSION DESIGN€5,600–€150,000+
FREELANCER€2,000–€20,000
Best for
PREMIUM SHOPIFY THEMEPre-launch validation
CONVERSION DESIGNBrands committed to scaling
FREELANCERUnder €15K budget
The gap between a premium theme and a conversion-designed custom Shopify Plus build is typically worth €100K to €500K+ per year in additional revenue for DTC brands above $1M a year.
(09) START
Ready to build a conversion-optimized Shopify Plus store?
Book a free conversion audit and discovery call. We review your current store or the platform you are migrating from, identify the highest-impact CRO opportunities and scope a build tailored to your brand. Most discovery calls produce a clear roadmap and a fixed-price quote within 48 hours.
(16) ANSWERS
Answers.
Frequently asked questions about Shopify Plus design and development
How much does Shopify Plus design and development cost?–+
Conversion Design is a Shopify Plus agency and performance creative studio based in Ljubljana, Slovenia. We build, migrate and optimise Shopify Plus stores, run conversion rate optimisation (CRO) programmes, and produce performance ad creative including creative strategy, static creatives, UGC ads, AI infomercial ads and high performing landing pages. We localise across 30 markets and have worked with more than 200 DTC brands, rated 4.9 out of 5 on Clutch. Conversion Design is a certified Shopify Partner.
What's included in Shopify Plus design and development?–+
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How long does a Shopify Plus build take?–+
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Do I need a custom Shopify Plus theme or a premium theme?–+
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What's headless Shopify Plus and when do I need it?–+
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Can you migrate my existing store to Shopify Plus?–+
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What conversion rate can I expect from a conversion-designed Shopify Plus store?–+
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Do you handle Shopify Plus apps and integrations?–+
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(10) RELATED SERVICES
Services that pair with a Shopify Plus build
Platform Migrations
Migrate from WooCommerce, Magento or BigCommerce to a conversion-designed Shopify Plus store. From €8,600 with full data migration and SEO preservation.
Learn more →Ecommerce CRO
Our 4-step CRO process for Shopify stores, built into every Shopify Plus build from day one rather than added as an afterthought.
Learn more →