Custom Shopify app development for functionality that does not exist in the App Store, built to your exact workflow, integrated cleanly, and supported long-term.
When no off-the-shelf Shopify app solves your specific problem, or when the closest option is overpriced, overcomplicated, or requires data to live in someone else's system, a custom private app is the right solution. We build Shopify apps using the Shopify API, Admin API, and Storefront API as appropriate for your use case. Private apps we build live exclusively in your store ecosystem, giving you full control over functionality, data, and future development. We scope, architect, build, test, and support everything we ship.
Everything in this service
A structured requirements session to map your workflow, identify API capabilities and limitations, define the user interface, and produce a detailed technical specification before any development.
Technical architecture design covering data models, API endpoint design, authentication, hosting infrastructure, and integration points with your existing Shopify setup.
Full-stack development of your private Shopify app, backend logic, Admin API integration, embedded app UI (React/Polaris where applicable), and any webhook or background job requirements.
Deep integration with the Shopify APIs you need: Admin, Storefront, Fulfillment, Inventory, Customer, and more, with correct rate limit handling and error management.
Functional testing, edge case validation, API error scenario testing, and load testing where applicable. All testing done in a development store before production deployment.
Post-launch support package covering bug fixes, Shopify API version updates (Shopify deprecates API versions annually), and incremental feature additions as your needs evolve.
The Shopify App Store has over 8,000 apps, and none of them were built for your specific workflow. Every installed app is a compromise, a subscription fee for functionality you use 40% of, data living in a third-party system you do not control, and a dependency on a vendor's roadmap decisions. A custom private app gives you exactly the functionality you need, running inside your own infrastructure, with no monthly fee beyond your hosting costs. For workflows that are genuinely unique to your business, custom development pays for itself faster than the compounding cost of subscription apps that almost fit.
Requirements workshop, API capability research, technical specification document, and a fixed-price proposal based on defined scope.
Technical architecture finalised, hosting infrastructure provisioned, development environment configured, and project repository established.
Two-week development sprints with visible progress and a review at the end of each sprint. Scope changes are documented and priced transparently.
Full QA cycle, production deployment, and a support package covering the first 60 days post-launch. Documentation and a handover call included.
Book a free scoping call, bring your workflow problem and we will tell you whether a custom app is the right solution and what it would cost to build.