KeyrampTech
eCommerce Development

Custom Shopify App Development

When the Shopify App Store does not have what you need — or the apps that exist charge painful monthly fees for half a solution — a custom app is the answer. We build private Shopify apps that automate your unique operations and public apps ready for App Store distribution.

Our team works across the full Shopify stack: Admin API, Storefront API, Shopify Functions, checkout UI extensions, and webhooks — delivering apps that are fast, secure, and compliant with Shopify's review requirements.

Shopify Custom Apps — KeyRamp Tech

What's included

01

Private Apps for Merchants

Purpose-built automation for your store's inventory, orders, and fulfillment quirks.

02

Public App Development

Full App Store-ready apps with billing, onboarding, and Shopify review compliance.

03

Checkout Extensions

Custom checkout UI and Shopify Functions for discounts, validation, and upsells.

04

ERP & Warehouse Sync

Real-time, two-way sync between Shopify and your back-office systems.

05

Webhook Automation

Event-driven workflows that react instantly to orders, refunds, and inventory changes.

Why it matters for your business

  • Automate manual operations that drain hours every week
  • Stop paying stacked monthly fees for apps you barely use
  • Functionality that fits your exact workflow, not a generic one
  • A new revenue stream if you distribute your app publicly

How we deliver

  1. 01

    Discovery

  2. 02

    Planning

  3. 03

    Design

  4. 04

    Development

  5. 05

    Testing

  6. 06

    Launch

Every engagement includes 30 days of free post-launch support — and transparent, fixed pricing agreed before any work begins.

Frequently asked questions