200+ satisfied clients
Build custom Shopify apps that unlock growth, increase retention, and automate up to 50% of operations.
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120+
successfully completed projects
95%
satisfied clients
3+
years average collaboration duration
20+
countries served
Most off-the-shelf Shopify apps add functionality, but rarely create a competitive advantage. We develop custom Shopify apps that help increase average order value, improve customer loyalty, and expand the capabilities of eCommerce businesses.
We provide end-to-end Shopify app development services, from internal business tools to scalable products for the Shopify App Store.
We help increase sales, average order value, and repeat purchases by:
We optimize key business processes to reduce operational workload by:
We connect Shopify with core business systems into a unified ecosystem by:
We build Shopify apps for unique business requirements by:
We develop internal Shopify web tools to improve operational efficiency by:
We create apps for publication and growth in the Shopify App Store by:
We help eliminate technical and operational limitations that hinder the growth of online stores and eCommerce businesses.
Challenge
Risk
Solution
Off-the-shelf Shopify apps don’t cover specific business requirements
Loss of revenue and competitive advantage.
We develop systems tailored to your business processes instead of forcing your company to adapt to generic tools.
Manual processes consume valuable team time
Slower scaling and increasing operational costs.
We automate key processes and data exchange so your team can focus on business growth rather than routine operations.
Shopify operates in isolation from other business systems
Errors in orders, inventory, and customer data.
We connect Shopify with ERP, CRM, WMS, PIM, and other platforms into a unified digital ecosystem.
The business is heavily dependent on third-party apps
Continuously rising costs and limited control over functionality.
When needed, we consolidate the functionality of multiple third-party services into a single app that evolves alongside your business.
From eCommerce to fintech, our clients span 20 countries and every project is different.
Denmark
How we rebuilt the storefront, split the EU and US into separate stores, and set up Shopify Markets for Europe - without pausing orders.
UK
How we moved retail and trade to Shopify Plus on native B2B, no custom backend - B2C on schedule, trade portal a month later.
Ukraine · USA
How we rebuilt the store on Online Store 2.0, simplified checkout, and automated inventory and marketing with NestJS, Klaviyo and Zapier.
Germany
The client created the concept in Claude, and we adapted it into a custom WordPress theme while preserving the URL structure and SEO metadata.
USA
We integrated an AI assistant into the World Jewish Travel WordPress website that creates personalized travel itineraries and generates AI videos or podcasts for them. We also developed a mobile app and a content generator that follows the brand’s style.
France
How we moved Côte&Ciel's three Shopify storefronts out of the PageSpeed red zone without pausing sales.
We combine technical expertise, integration experience, and a long-term development approach to build Shopify app development solutions that support business growth and the evolution of digital products.
Shopify-Focused Team
We operate as a partner team of 30+ experienced developers with a deep understanding of Shopify’s limitations, capabilities, and best practices across the entire ecosystem.
100+ Integration Projects Delivered
We have hands-on experience integrating Shopify with ERP, CRM, PIM, WMS, 3PL, and other business systems that power modern eCommerce operations.
Public, Private & Embedded Apps
We develop all types of Shopify applications, from internal business tools to scalable Shopify App Store products that create additional monetization opportunities.
Long-Term Product Partnership
A 95% client satisfaction rate and an average partnership duration of over 3 years reflect our commitment to long-term product growth, not just successful launches.
Shopify-Focused Team
We operate as a partner team of 30+ experienced developers with a deep understanding of Shopify’s limitations, capabilities, and best practices across the entire ecosystem.
100+ Integration Projects Delivered
We have hands-on experience integrating Shopify with ERP, CRM, PIM, WMS, 3PL, and other business systems that power modern eCommerce operations.
Public, Private & Embedded Apps
We develop all types of Shopify applications, from internal business tools to scalable Shopify App Store products that create additional monetization opportunities.
Long-Term Product Partnership
A 95% client satisfaction rate and an average partnership duration of over 3 years reflect our commitment to long-term product growth, not just successful launches.
Our agency provides Shopify web app development services, covering everything from requirements analysis and architecture design to launch, support, and app evolution.
We analyze business processes, identify limitations in existing workflows, and define the problem that the future app should solve.
We shape the product concept, architecture, core functionality, integrations, and key user scenarios.
We design intuitive user flows and interfaces that simplify interactions across web and mobile experiences.
We develop business logic, automations, growth-driving features, and integrations with the required systems.
We conduct comprehensive testing, verify application stability, and launch the solution in a production environment or prepare it for publication in the Shopify App Store.
We analyze performance, introduce new capabilities, and continuously evolve the product in line with business needs.
We use modern technologies and tools to develop, optimize, and maintain high-performance and stable platforms.
ShopifyShopify Plus
Shopify App Store
Liquid
JavaScript
TypeScript
React
Next.js
AWS
Google Cloud
Azure
Cloudflare
GitHubWe build custom eCommerce applications for online stores, digital brands, and SaaS platforms — helping automate operations, connect business systems, and support scalable growth.
netparcel
sigma
a&g
pineapple
bering
cultnaked
lock
nila
heyholy
webloft
lgfgDiscover how our solutions help overcome technical barriers, maintain system reliability, and implement innovations that drive sales growth.
5.0
Overall Review Rating
“Three Years of Reliable Delivery”
Stellar has supported our Shopify store for three years, building backend functionality and custom tools. They’re fast, responsive, and reliable.
Co-Founder at HEY HOLY, an eCommerce pet brand
“Built on Clarity and Speed”
Stellar impressed us with clear, fast communication and a well-structured process, especially when deadlines were tight and quick decisions were critical.
Creative Director at Long Story Short
Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.
CEO, LGFG Fashion House
Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.
Owner at NILG.AI
Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.
Shopify & eCommerce Expert, Owner at Digitalebox.de
They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.
Director of Marketing at Cooper Mountain Technologies
They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.
Co-owner, Marketing Nice Guys
Tell us what you are building and we will help you shape the next step.
Vladimir Gubarev
COO and Co-founder
Jack Ananchenko
CEO and Co-founder
From eCommerce to fintech, our clients span 20 countries and every project is different.
DenmarkHow we rebuilt the storefront, split the EU and US into separate stores, and set up Shopify Markets for Europe - without pausing orders.
UKHow we moved retail and trade to Shopify Plus on native B2B, no custom backend - B2C on schedule, trade portal a month later.
Ukraine · USAHow we rebuilt the store on Online Store 2.0, simplified checkout, and automated inventory and marketing with NestJS, Klaviyo and Zapier.
GermanyThe client created the concept in Claude, and we adapted it into a custom WordPress theme while preserving the URL structure and SEO metadata.
USAWe integrated an AI assistant into the World Jewish Travel WordPress website that creates personalized travel itineraries and generates AI videos or podcasts for them. We also developed a mobile app and a content generator that follows the brand’s style.
FranceHow we moved Côte&Ciel's three Shopify storefronts out of the PageSpeed red zone without pausing sales.
