+94 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.
We migrated Ca'Pietra’s B2C store and B2B portal from Magento to Shopify Plus, using native Shopify features and apps for trade workflows. B2C launched on time and budget; the trade portal followed on
A Danish watch and jewellery brand moved to Shopify with a full storefront redesign: a faster site, independent releases for the EU and the US, and localization the client's own team runs.
How Stellar cut Shopify load time to under 2 seconds, increased conversions by 25%, reduced manual work by 40%, and helped drive 20% sales growth.
AfterCart migration to Shopify 2.0: removed delays caused by on-the-fly protection product creation and reduced the risk of transaction fee losses.
Peak season was 2–3 months away and the subscription store wasn't live yet. See how Stellar built it on Magento with Chargebee billing.
How we helped Côte&Ciel improve performance across three Shopify storefronts, while the EU store recorded a 7% YoY increase in conversion.
Custom quiz, calorie calculator, and multi-discount cart for a mobile-first Shopify store – built with Web Components + Alpine.js.
How we optimized a London antique retailer's Magento 2 store - custom analytics, faster search, −22% order processing time and +18% ROAS. 8-year partnership.
How Stellar migrated Baketivity from WooCommerce to Shopify Plus, rebuilt subscription logic, preserved data, and added ClassWallet features.
How we migrated King of Christmas from a hardcoded Dawn theme to Horizon, avoided an estimated 1,000+ development hours, and unlocked marketing autonomy.
See how Stellar moved a UK online pharmacy to Hyvä Themes, upgraded Magento to 2.4.7-p1, and hit Google's green Core Web Vitals - with zero downtime.
Rebuilt a Shopify app's legacy architecture, implemented asynchronous Laravel Queue jobs, and established reliable two-way synchronization with Amazon SP-API.
See how Stellar engineered a multi-market Magento 2 checkout with custom business logic, REST API integrations, and 2+ years of continuous support.
We built a free Shopify app that checks storefront pages, scores their SEO health, and turns findings into practical next steps.
Custom Shopify app replacing a Google Sheets-based forecasting workflow with automated order imports, an interactive dashboard, and alerts. See how!
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.
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.
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.
4.9
Overall Review Rating
Co-Founder at HEY HOLY, an eCommerce pet brand
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.
Creative Director at Long Story Short
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.
CEO, LGFG Fashion House
Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.
Owner at NILG.AI
Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.
Shopify & eCommerce Expert, Owner at Digitalebox.de
Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.
Director of Marketing at Cooper Mountain Technologies
They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.
Co-owner, Marketing Nice Guys
They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.
Looking to strengthen your online business with an app that automates processes and increases sales?
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.
We migrated Ca'Pietra’s B2C store and B2B portal from Magento to Shopify Plus, using native Shopify features and apps for trade workflows. B2C launched on time and budget; the trade portal followed on
A Danish watch and jewellery brand moved to Shopify with a full storefront redesign: a faster site, independent releases for the EU and the US, and localization the client's own team runs.
How Stellar cut Shopify load time to under 2 seconds, increased conversions by 25%, reduced manual work by 40%, and helped drive 20% sales growth.
AfterCart migration to Shopify 2.0: removed delays caused by on-the-fly protection product creation and reduced the risk of transaction fee losses.
Peak season was 2–3 months away and the subscription store wasn't live yet. See how Stellar built it on Magento with Chargebee billing.
How we helped Côte&Ciel improve performance across three Shopify storefronts, while the EU store recorded a 7% YoY increase in conversion.
Custom quiz, calorie calculator, and multi-discount cart for a mobile-first Shopify store – built with Web Components + Alpine.js.
How we optimized a London antique retailer's Magento 2 store - custom analytics, faster search, −22% order processing time and +18% ROAS. 8-year partnership.
How Stellar migrated Baketivity from WooCommerce to Shopify Plus, rebuilt subscription logic, preserved data, and added ClassWallet features.
How we migrated King of Christmas from a hardcoded Dawn theme to Horizon, avoided an estimated 1,000+ development hours, and unlocked marketing autonomy.
See how Stellar moved a UK online pharmacy to Hyvä Themes, upgraded Magento to 2.4.7-p1, and hit Google's green Core Web Vitals - with zero downtime.
Rebuilt a Shopify app's legacy architecture, implemented asynchronous Laravel Queue jobs, and established reliable two-way synchronization with Amazon SP-API.
See how Stellar engineered a multi-market Magento 2 checkout with custom business logic, REST API integrations, and 2+ years of continuous support.
We built a free Shopify app that checks storefront pages, scores their SEO health, and turns findings into practical next steps.
Custom Shopify app replacing a Google Sheets-based forecasting workflow with automated order imports, an interactive dashboard, and alerts. See how!
