Shopify app development
Build apps that make Shopify work exactly how you need it
From custom integrations to full-featured public apps — extend Shopify’s functionality to match your business, not the other way around.
Why custom app development matters
When your business outgrows “off-the-shelf” apps
Every Shopify store is unique — but the app store isn’t.
If you’ve reached the limits of plug-and-play solutions, a custom-built app helps you automate, integrate, and innovate faster.
A custom Shopify app helps you:
- Eliminate repetitive manual processes
- Connect Shopify with ERP, CRM, or fulfillment systems
- Launch new features that improve customer experience
- Own your data and reduce dependency on third-party tools
- Scale faster without breaking what already works
Stop patching limitations — start building exactly what you need.
What you gain
Apps that save time, reduce costs, and drive growth
- Eliminate expensive manual workflows
- Gain full control of data sync between systems
- Build unique customer experiences that differentiate your brand
- Increase efficiency for your team and your customers
- Add measurable value to your Shopify ecosystem
Your store’s next growth jump often comes from the right app — not another plugin.
300+ Brands served
200+ Reviews on Shopify Experts
35% Avg. conversion rate uplift
50+ Years of eCommerce experience across our leadership team
Our latest work
Here are a few examples of successful projects we’ve helped brands complete — each one with unique challenges and measurable results: All case studies
Moved from Magento to Shopify Plus with full Arabic RTL, Click & Collect at UAE stores, 4-hour and 24-hour delivery messaging and ERP and PIM sync.“We accomplished more in the last few months building this Shopify store than we did in the last 5 years on our old Magento store.” Ecommerce Manager, iSTYLE.ae
Five localized Shopify Plus stores for the UAE, Iraq, Lebanon, Oman and Morocco, with B2B views, student discounts and conditional shipping and payments.
Moved from OpenCart to Shopify with photo and video reviews, apparel-specific filters, color variant grouping for SEO and over 20 Klaviyo emails.How it works
From idea to launch — a clear, collaborative process
1. Discovery & scoping
Define the problem, workflow, and requirements together.
2. Architecture & UX planning
Design data flow, permissions, and interfaces for merchants or admins.
3. Development & testing
Build with the latest Shopify API and Polaris design standards.
4. Launch & submission
Deploy privately or publish in the Shopify App Store.
5. Support & iteration
Continuous maintenance, improvements, and feature updates.
How we reduce risk
Common Shopify app development risks — gone for good
Many Shopify store owners hesitate to invest in app development due to concerns about technical complexity, compatibility issues, or a lack of long-term support. These are valid fears, but with professional app development, these risks can be completely avoided.
Here’s what professional Shopify app development eliminates:
- No technical issues – Custom-built apps that integrate seamlessly with your store, improving functionality without any bugs or system crashes.
- No compatibility setbacks – Fully compatible apps that work smoothly across devices, browsers, and Shopify themes, ensuring a consistent user experience.
- No lost opportunities – Tailored features and automation that enhance customer engagement, increase retention, and streamline your operations to drive higher conversions.
- No complex setups – Easy-to-implement solutions that require minimal effort on your part, with expert guidance and support throughout the development process.
- No unexpected costs – Transparent pricing for app development, with clear expectations set from the start and no surprise fees or charges after the app is deployed.
- No security risks – Secure app development that complies with best practices in data protection and privacy laws, ensuring your customers’ information is safe.
With professional Shopify app development, you eliminate the uncertainties and technical barriers, allowing your store to evolve and scale smoothly. You gain a powerful, customized solution that enhances your store’s functionality and drives measurable growth, all without the headaches of poor performance or unexpected issues.
Why choose eCommerce Today?
A Technical Team That Understands Business Impact
Our developers build with one goal in mind — business results.
Each app starts with a clear understanding of your processes, customer needs, and growth goals.
What sets us apart:
- Official Shopify Plus Partner & certified app developers
- Experience building private and public apps for EU, MENA, and US markets
- Strong integration background with ERP, CRM, and logistics systems
- Full-service team (design, UX, backend, QA, documentation) under one roof
We don’t just code apps — we build solutions that keep your business ahead of change.
Led by operators who ran their own stores.
Stefan Chiriacescu built and exited ecommerce businesses in the US and Europe before founding eCommerce Today in 2019. He speaks about marketing automation and AI at events from Riga to Ho Chi Minh City.
“‘Wasn’t me, the AI wrote it’ is not a strategy. Humans own the outcome.”
- Specialists, all in-house
- 30+
- Languages: English, Romanian, Italian, Hungarian
- 4
- Outsourced work
- None
Frequent questions
What is the difference between a custom (private) and a public Shopify app?
A custom (private) Shopify app is built exclusively for your store to solve internal operational needs or custom workflows. A public Shopify app is listed on the Shopify App Store and built for multiple merchants to install and subscribe to.
How long does it take to develop a custom Shopify app?
Custom Shopify app development typically takes between 3 to 8 weeks depending on technical complexity and third-party API integrations. Simple workflow automation apps take around 3–4 weeks, while complex ERP middleware or public apps require 6–8+ weeks.
Can a custom Shopify app integrate our store with an internal ERP, CRM, or WMS?
Yes, custom apps serve as middleware to connect Shopify directly with legacy ERPs, CRMs, and warehouse management systems via custom APIs. They automate real-time bi-directional data syncing for stock, orders, pricing, and customer records.
Who owns the intellectual property (IP) and source code of the custom app?
You retain 100% ownership of the custom source code, business logic, and intellectual property upon project completion. We transfer the repository and cloud deployment access directly to your company infrastructure.
What tech stack and standards do you use for Shopify app development?
We build custom apps using modern web frameworks like Node.js, React, Remix, and GraphQL, adhering strictly to Shopify Polaris design guidelines. This guarantees high performance, secure API usage, and seamless integration with the Shopify admin.
How much does custom Shopify app development cost?
Custom Shopify app projects generally range from $5,000 to $25,000+ based on feature scope, security architecture, and system complexity. We provide a fixed-price project scope after the initial technical discovery phase.
How do you handle hosting, security, and ongoing API updates for Shopify apps?
Custom apps are hosted on secure cloud infrastructure like AWS or GCP, featuring automatic SSL, data encryption, and scalable resources. We also provide ongoing maintenance retainer plans to update API versions whenever Shopify releases major protocol changes.
Can you build public apps that comply with Shopify App Store approval requirements?
Yes, we engineer public apps specifically to pass Shopify’s rigorous App Store review process, including security audits and Polaris UX compliance. We handle the submission, technical documentation, and app listing setup from start to finish.
Will a custom app slow down my Shopify store’s front-end performance?
No, properly built custom apps run on external server infrastructure or use native Shopify App Proxies and Theme App Extensions. This structure ensures zero performance overhead or code bloat on your live storefront.
Do you provide maintenance and bug fixes after the app goes live?
Yes, every app project includes 30 days of post-launch technical support to monitor server logs and fix any initial operational bugs. We also offer extended SLAs for 24/7 server monitoring and feature updates.
Let’s build the app your store actually needs
Share what process or challenge you’d like to automate — we’ll prepare a quick discovery outline and estimate.
- Europe
- +40 738 496 728