Custom Shopify apps built by a published app partner.
Tripster Developers builds and maintains Shopify apps used by thousands of merchants. When you need functionality that no off-the-shelf app provides, we build exactly what your store needs: tools embedded in your Shopify admin, custom checkout experiences, and connections to your external systems.
Every type of Shopify app extension.
From embedded admin tools to checkout logic that runs inside Shopify's infrastructure.
Embedded Admin Apps
Full-featured tools that live inside your Shopify admin. Dashboard interfaces, bulk edit tools, report builders, and workflow automation, all looking and feeling like a native part of Shopify.
Custom Checkout Logic
Custom discount rules, volume pricing, B2B shipping conditions, and payment method filtering that run at checkout. The most reliable way to apply business-specific pricing rules without workarounds.
Checkout Extensions
Custom widgets added directly to your Shopify checkout. Delivery instructions, order notes, upsell offers, B2B purchase order number fields, and post-purchase pages, fully compatible with Shop Pay.
Integration Apps
Apps that connect your Shopify store to external systems in real time. ERP sync, inventory platforms, CRM connectors, fulfilment integrations. Events flow automatically when orders are placed, products change, or customers update.
Storefront App Blocks
Custom components that slot into any Shopify theme without touching theme code. Loyalty widgets, review displays, trust badges, custom product tabs. Merchants can move and configure them from the theme editor.
Shopify Flow Connectors
Custom triggers and actions that extend Shopify Flow into your external systems. Tag customers on third-party platforms, trigger fulfilment workflows, sync loyalty points, all from the Flow visual automation builder.
We have shipped apps to the App Store. We know the standards.
Scope and Pricing
We map every feature, data connection, and screen your app needs. Everything is documented before we write code. This gives you a clear picture of what you are getting and what it costs, with no surprises later.
Build
The app is built to look and feel like a native part of Shopify. Admin-facing tools use Shopify's own design language. Customer-facing extensions match your storefront. Everything is tested on real development stores throughout the build.
Connections and Integrations
If your app needs to talk to external systems, we build the connections correctly: real-time event handling, reliable syncing, and fallback logic so data is never silently lost when something goes wrong on the other side.
Testing and QA
Full testing on development stores. Manual walkthrough of every feature in the Shopify admin and storefront. If the app is going to the App Store, we run the full Shopify review checklist before submission.
Launch and Ongoing Support
Deployment to production with full documentation and a training session for your team. Post-launch support window on every project. Maintenance retainers available for apps that need ongoing development.
We build and ship apps ourselves. Not just for clients.
Miko B2B Wholesale House is a publicly listed Shopify app we built and actively maintain. It powers B2B wholesale operations for hundreds of merchants, handling tiered pricing, net terms, wholesale customer portals, and order management.
Building and maintaining a real Shopify app in production means we understand the platform at a different level than agencies who only build for clients. We know how webhooks behave under load, what the App Store review team flags, and how Shopify Functions interact with complex cart structures. That experience shapes every custom app we build.
Learn About Miko B2B Wholesale House
Shopify App Development Questions
What is the difference between a custom app and a private app on Shopify?
Private apps are a legacy format no longer supported for new installs. Custom apps are the current equivalent: built for a single store, installed via direct link rather than the App Store, not publicly listed. They use the same OAuth, API scopes, and webhooks as public apps but are scoped to one merchant. This is the right approach when you need functionality no off-the-shelf app provides.
What are Shopify Functions and when should I use them?
Shopify Functions are custom logic extensions that run inside Shopify's infrastructure to customize checkout behavior. They replace Script Editor and are the only way to apply custom discounts, custom shipping logic, or custom payment filtering on Shopify Plus. Use them for tiered pricing, B2B volume discounts at checkout, custom shipping option filtering, or bundle discounts that native discount codes cannot handle.
Can you build an app that syncs Shopify with an external system?
Yes. Sync apps that connect Shopify to ERPs, inventory platforms, CRMs, and fulfilment systems are among the most common apps we build. We use Shopify webhooks for real-time events and the Admin API for reads and writes. Our Odoo connector is a live example of this type of integration.
How long does it take to build a custom Shopify app?
A focused custom app with a clear scope typically takes 6 to 12 weeks from kickoff to production. Simple embedded admin tools are on the shorter end. Apps with complex webhook pipelines, Checkout Extensions, or Shopify Functions take longer. We scope every project in detail before starting and provide a milestone-based timeline with fixed pricing.
Do you publish apps on the Shopify App Store?
Yes. Miko B2B Wholesale House is our flagship published app, serving wholesale merchants with tiered pricing, net terms, and B2B customer portals. We can build and publish public apps for clients who want to serve multiple merchants, or build custom apps for your store only.
We have already shipped four Shopify apps. Here they are.
Every app below is live, in use by real merchants, and maintained by our team. This is what custom Shopify app development from Tripster Developers looks like in practice.
Miko B2B Wholesale House
Wholesale pricing, customer groups, and net payment terms for any Shopify store. Installed by hundreds of B2B merchants worldwide.
View app →
Miko Loyalty and Rewards
Points, tiers, and referrals that keep customers coming back. A loyalty program built for Shopify merchants who want more than basic discounts.
View app →
Miko AI
AI-powered store assistant for Shopify. Product descriptions, SEO optimization, and content that sounds human, generated in your store's voice.
View app →Live Odoo Connector
Real-time two-way sync between Shopify and Odoo ERP. Custom install, built and maintained by Tripster Developers. Products, orders, and customers stay in sync automatically.
View app →Need a custom Shopify app?
Tell us what the app needs to do. We will review your requirements, identify the right Shopify extension types, and come back with a detailed scope and fixed-price quote.
Discuss Your App Project