More Revenue. Fewer Apps. Faster Shopify.
Custom Shopify engineering for brands losing revenue to slow stores, leaky funnels, and spiralling app costs.
Recent works we are proud of
Your store isn't underperforming. It's leaking revenue.
The traffic is there. The sales aren't. Somewhere between the click and the checkout, revenue is slipping away - and most stores never find out where.
Stop leaking.Start converting.
Every click you paid for should pull its weight - so we engineer your store to turn traffic into revenue.
A slow mobile product page loses more sales than any button-color test will ever win back. That is an engineering problem, not a copywriting one - and engineering is exactly what we do.
Every euro you spend on ads buys traffic once. A single point of extra conversion works on all your traffic, on every campaign, from now on. That is why fixing the leak usually beats buying more visitors.
Different stores. Same result: more revenue.
Custom Shopify Development
Custom store improvements for seasonal gifts workflows, built and shipped in close partnership with the in-house team.
Operational efficiency improvement
Shopify Conversion Optimization
Restructuring 1500+ product variants on Shopify in just 4 hours, now fully available on product pages.
Conversion rate from paid traffic
Speed Optimization
Migrate from a headless setup to Shopify Native in just a few days, with gains still rolling in.
Performance score
Our own products, shipped on Shopify.
We build and maintain our own Shopify software. The team fixing your store is the same team shipping production apps to the Shopify App Store - so the engineering depth you're buying is already proven in products merchants use every day.
CRO Navigator
Funnel analytics that show exactly where your store leaks revenue, step by step.
Visit cronavigator.comHotshop
Shoppable product hotspots inside your Shopify image carousel - lifestyle imagery straight to product.
View on Shopify App StoreEngineering without the chaos
STEP #1
FREE DISCOVERY CALL
We get to know your store and goals, and align on timeline, budget, and fit - no strings.
STEP #2
STORE AUDIT
We dig into your performance, code, and funnel, and map out exactly where revenue is leaking.
STEP #3
BUILD & IMPLEMENT
Senior engineers build, optimize, or migrate - clean code, clear updates, no drama.
STEP #4
MONITOR & SUPPORT
We stay on as your tech partner, keeping your store fast and your revenue climbing as you grow.
Dutch engineering oversight. Nearshore delivery speed.
Every project is led by senior Dutch engineers and built by our own in-house team in Duhok. Not outsourced, not freelancers - one dedicated team held to a single standard. That is how we fix more, faster, without the price tag of a traditional Dutch agency.
What our clients say about us
"Zinzo addressed the legacy code affecting our shop's speed performance, while developing some new features. As a result, the performance score already doubled, with more improvements following soon."
Guido Evers
Testa Omega-3
"The custom improvements to our webshop were done professionally, in close cooperation with our technical partner and delivered within 2 weeks. We immediately noticed the results in our analytics: in the first month we measured a 14% conversion rate increase from organic search and +81% increase on paid search."
Ronald Klijsen
Loints of Holland
"The core web vitals changed from 60 (fail) to +80 (pass) following the performance fix to one of our client's Magento webshop. Directly we saw the paid traffic conversions improve by almost 80%."
Akke Pennin
IWB Agency
"The Performance Audit not only gave me practical insights to technical changes, but I also got important feedback how to improve the conversion rate in the buyer journey. Great value!"
Tim Dekens
The Change Starts
"Zinzo built a custom Shopify store that aligns perfectly with my brand, implementing every detail as I envisioned while maintaining clear communication throughout the process."
Susan van Elteren
Noble Xi
"Working with Zinzo was personal, efficient, and delivered a great result: a scalable Shopify solution for our unique gift assortment."
Lennert Rietveld
Geschenken van Vroeg
"Zinzo delivered exactly what we needed — fast, technically solid, and with clear communication throughout. Their Shopify engineering expertise really stood out, especially in making our store fully multilingual and scalable for international growth. Complex requirements were handled smoothly, feedback was picked up quickly, and responses were always within a day. We're extremely happy with the end result and the way the team works."
Yannick Haverkamp
Tote Label
"This team has the expertise and is fast. We migrated from MijnWebwinkel to Shopify and they help us at every step. Super."
Arend-Jan Majoor
StopMijnAfval