Custom Shopify App Development
Custom internal tools, integrations, and checkout logic built on Shopify's API.
Custom Shopify app development is building software that runs inside or alongside a Shopify store to handle a specific need that no existing app in the Shopify App Store covers, from custom checkout logic to internal tools to API integrations with other business systems. It's different from Bonsify's flagship mobile app work, which is customer-facing; custom app development covers the technical, often internal-facing side of running a Shopify store. Bonsify is a Shopify services company by FetchSky that builds native iOS and Android apps, PWAs, new Shopify stores, platform migrations, custom apps, and more.
What's included
- Custom Shopify app development using Shopify's API and app framework
- Integration development connecting Shopify to ERPs, inventory systems, CRMs, or other internal tools
- Checkout extensions and custom logic beyond what standard Shopify checkout supports
- Internal admin tools for teams managing complex catalogs or operations
- Ongoing maintenance as Shopify's API and platform evolve
When custom development makes sense
Most Shopify functionality is covered by existing apps in the App Store, which is usually the faster and cheaper route. Custom development makes sense when a store's process genuinely doesn't fit an existing app, a specific integration with a legacy internal system, a checkout rule unique to the business, or an internal tool that doesn't exist as an off-the-shelf product. Bonsify scopes this honestly during the audit rather than defaulting to a custom build when an existing app would solve the problem faster and cheaper.
How the process works
Custom development starts with a technical scoping conversation, closer to a project audit than the standard mobile app free audit, since custom builds vary widely in scope. From there, development follows a phased approach with regular check-ins, since custom projects tend to involve more iteration than a standard app or store build. Pricing is scoped to the specific project rather than a fixed template price, given the range of what custom development can cover.
Beyond custom development
Custom app development often comes up alongside a broader Shopify engagement, a mobile app that needs a specific integration, a store migration that requires custom logic to preserve existing functionality, or a headless build that needs custom API work. Bonsify handles all of it under the same team rather than treating custom development as a separate vendor relationship.
Getting started
A scoping conversation is the first step for any custom development project, to understand what's actually needed before committing to a build.
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Mobile app development is customer-facing software for iOS and Android. Custom app development covers internal tools, integrations, and checkout logic that don't fit an existing Shopify App Store product.
Bonsify scopes that honestly during the initial conversation, recommending an existing app when one covers the need rather than defaulting to a custom build.
Yes, integration development connecting Shopify to ERPs, CRMs, and other internal systems is a common use case.
It's scoped to the specific project rather than a fixed template price, given how much custom builds can vary in scope.
Timeline depends entirely on the project's scope and is defined during the initial scoping conversation.
Yes, ongoing maintenance is available as Shopify's API and platform evolve.
Custom internal tools, integrations, and checkout logic built on Shopify's API.
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