Shopify apps and integrations for stores that are ready to grow up
If you are running a serious Shopify store, you eventually hit the limits of "there is probably an app for that". Stacked plugins slow down your site, break during sales, and leave your team exporting CSV files at midnight just to keep orders flowing.
BYBOWU is a Shopify-focused web development agency based in Phoenix, AZ, working with merchants across the US and worldwide. We design, build, and maintain custom Shopify apps and integrations for founders, ecommerce leads, and operations teams who care about revenue, margin, and reliability.
Common Shopify problems we fix
Most stores come to us after trying off-the-shelf apps and hitting one or more of these issues:
- Too many apps slowing the storefront and hurting Core Web Vitals and SEO.
- Discounts, bundles, or subscriptions that your current apps cannot handle cleanly.
- Inventory, fulfillment, or accounting spread across tools that do not talk to each other.
- Manual data exports for your CRM, email marketing, or reporting every week.
- Custom product data or pricing rules that do not fit standard Shopify features.
- Legacy integrations built by freelancers that break every time Shopify updates.
Our job is to replace fragile workarounds with clean, tested apps and integrations that your team can rely on during peak traffic, big launches, and day-to-day operations.
How we approach Shopify apps and integrations
We combine Shopify development, backend engineering, and solid product thinking so you get something that works now and scales later.
- Discovery and mapping. We start by understanding your store, current apps, operational workflows, and constraints. Together we define what must be automated, what must be faster, and which metrics matter most, such as AOV, conversion rate, or fulfillment time.
- Architecture and scoping. We design how data should flow between Shopify and your other systems. That may involve Shopify APIs, private apps, Shopify Functions, or custom middleware, sometimes together with our Integrations & API Development team.
- Design and UX for custom apps. If your staff or customers will interact with a custom app, we map flows and interfaces so it is usable without training. Our UI/UX & Branding Design Services team can design admin tools and customer-facing widgets that feel native to Shopify.
- Development and integration. We implement the plan using modern, well-supported technologies in line with Shopify's best practices. That often means Shopify's Admin and Storefront APIs, webhooks, and secure backend services.
- QA, performance, and rollout. Our QA & Testing Services team validates edge cases, load, and data integrity before anything touches live orders. Where needed, we roll out in phases so you can monitor impact without risking a busy weekend.
- Support and iteration. After launch, we monitor behavior, fix real-world issues, and plan the next improvements. Many clients keep us on via our Support & Maintenance services.
What you get as concrete deliverables
Every Shopify apps and integrations engagement produces a clear, reusable set of assets, not just "some code":
- Architecture diagram showing how Shopify connects to your other systems.
- Custom private apps or scripts installed and configured in your Shopify store.
- API integrations between Shopify and tools like CRM, email, advertising, or ERP platforms.
- Configuration of webhooks, automation rules, and error handling for key flows.
- Basic documentation for your team on how to use, monitor, and extend the solution.
- Optional training sessions for operations or marketing teams.
What you can order
- App cleanup and consolidation — Audit existing Shopify apps, remove conflicts, and replace fragile stacks with a smaller, more stable set of apps or light custom scripts that keep your store fast and predictable.
- Custom Shopify app for operations — A private app that automates a painful internal workflow, such as purchase orders, fulfillment routing, B2B pricing, or custom product options that standard apps do not handle well.
- CRM and marketing integration — Reliable two-way sync between Shopify and tools like your CRM, email platform, or advertising stack, with clear rules for contacts, orders, events, and segments. Often combined with our CRM Integrations or SEO & Digital Marketing services.
- Inventory, warehouse, and ERP integration — Connect Shopify with inventory, warehouse, or ERP systems so stock levels, purchase orders, and returns stay in sync without manual spreadsheets.
- Subscriptions, bundles, and custom pricing engine — Implementation of subscription logic, bundle builders, or complex pricing and discount rules using custom apps or integrations with specialized providers, tuned to protect margin while increasing AOV.
- Analytics and reporting pipeline for Shopify — A data setup that sends clean Shopify events and order data into your analytics or BI tools, pairing our Shopify work with Data Engineering & BI or Product Analytics Implementation.
How engagement works with BYBOWU
You are busy running a store, so we keep the process simple and transparent.
- 1. Intro call. A short call to understand your goals, current stack, and timeline. If there is a fit, we outline next steps and a light discovery.
- 2. Technical and business discovery. We review your Shopify setup, connected tools, and key workflows. You get a summary of problems, risks, and quick wins.
- 3. Scope and proposal. We share a structured proposal with options, milestones, and budget ranges. You see trade-offs clearly before committing.
- 4. Build and integrate. We work in focused sprints, sharing progress in plain language and showing you updates in staging stores or test environments.
- 5. Launch and support. We coordinate go-live around your sales calendar, monitor key metrics, and fix issues quickly. You choose whether to keep us on retainer or handle day-to-day operations internally.
If you are near Phoenix and want in-person workshops for complex flows, we can meet on-site. If you are elsewhere in the US or abroad, everything runs smoothly over video and async channels.
Why choose BYBOWU for Shopify apps and integrations
- Ecommerce-first thinking. We care about conversion rate, AOV, margin, and LTV, not just "getting the API to respond". Features are chosen because they help you sell and operate more efficiently.
- Design, engineering, and data together. Our web, app, and data teams sit under one roof, so your custom app, backend, and reporting line up instead of fighting each other.
- Senior owners on your project. You work directly with people who have shipped complex marketplaces, portals, and ecommerce platforms, not a rotating cast of juniors.
- Stable foundations, fewer emergencies. We follow Shopify best practices, write clear documentation, and design for peak loads. That means fewer late-night patches and more predictable campaigns.
- Long-term partnership if you want it. Many clients start with a single app or integration, then expand into E-commerce Development, Mobile Apps, or AI & Automation Solutions as they scale.
Proof it works in the real world
Modern apparel marketplace with complex catalog
For a modern clothing marketplace, we connected the storefront with back-office tools so product data, pricing, and stock stayed in sync. The result was a faster catalog experience and a platform ready for new brands over time. See project details.
Tactical ecommerce with detailed product data
In a tactical apparel project, we implemented a flexible product structure and integrations that handled rich attributes and inventory across categories, making browsing easier and reducing errors at checkout. See project details.
B2B dropshipping portal and order routing
We built a web platform for a wholesaler and dropshipping business that streamlined product management and ordering between suppliers and resellers, including automated data flows that removed manual reconciliations. See project details.
Roommate marketplace with smooth onboarding
For a real-estate oriented platform, we focused on clean user flows, matching logic, and stable integrations so users could create profiles and connect without friction, a similar mindset we bring to customer and partner portals. See project details.
Questions founders usually ask
Do I really need a custom app, or can I use existing Shopify apps?
We start with what already exists. If reliable off-the-shelf apps can cover your needs without harming performance or operations, we will tell you. Custom apps or integrations make sense when your workflows are unique, your stack is complex, or you have already stretched existing tools to their limit.
What budgets do you typically work with for Shopify apps and integrations?
Budgets vary by scope. App cleanup and simple integrations sit at the lower end, a focused custom private app is mid-range, and multi-system integrations or complex pricing engines are higher. If you share your constraints, we can usually design a phase 1 that fits. You can also review ranges on our Prices page.
How long does it take to build a Shopify app or integration?
Roughly, focused integrations or app cleanups often take 2–4 weeks, custom private apps 4–8 weeks, and larger multi-system projects 8–12 weeks depending on complexity and access to third-party systems. We confirm timelines and critical launch windows with you before starting.
Will this impact my store's performance or SEO?
Performance is a core part of our process. Where possible, we move logic off the storefront, reduce app bloat, and keep scripts lean so your Core Web Vitals and SEO are protected. When needed, we coordinate with our SEO Optimization Services team to validate impact.
Can you work with my existing developers or agency?
Yes. We often join teams to handle specific Shopify or integration work while your current agency focuses on marketing, design, or other channels. Clear responsibilities, documentation, and handover are part of how we operate.
What happens if Shopify changes its APIs or policies?
Shopify evolves quickly, so we build on supported APIs and patterns, not hacks. For long-term engagements, our support plans include monitoring of deprecations and proactive updates. If you prefer one-off work, we document what you will need to watch for in the future.
Talk through your Shopify apps and integrations
If you already know what you need, we can usually outline an approach, rough budget, and timeline within one business day.
If you are not sure where to start, we can review your current Shopify setup, highlight risks, and suggest realistic next steps that match your growth plans.
Contact us for a 24-hour estimate or request a Phoenix ecommerce audit.
