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SyncVentura

Shopify app development

We build apps for Shopify: custom apps for a single store or public apps for the Shopify App Store. With our own app EuKlar we have gone through the whole process up to App Store submission ourselves.

What we build

From the interface in the Shopify admin to the block on the product page.

Apps in the Shopify admin

Embedded apps that feel like part of Shopify, with the familiar interface and in the admin’s language.

Theme blocks

Content on the product page that merchants place freely in the theme editor. No extra JavaScript, so the store stays fast.

Metafields and bulk updates

Change data on thousands of products at once, in the background through Shopify’s bulk API. In EuKlar this cut the time for 1,000 products from 101 to 40 seconds.

Webhooks

React to new products, changes and uninstalls. We fully implement Shopify’s privacy webhooks.

Billing through Shopify

Plans, free trials and yearly subscriptions through the Shopify Billing API. Merchants pay on their Shopify invoice.

App Store submission

Listing, images, demo video and review against Shopify’s requirements, from our own experience.

Typical starting points

  • Your store needs a feature that no app in the store covers.
  • Several apps should be replaced by one that fits your processes exactly.
  • You want to offer your own app in the Shopify App Store.

Technology

Shopify
Admin GraphQL API, App Bridge, Polaris
Storefront
Theme app extensions and Liquid
App
React Router, Node.js, Prisma
Data
Bulk operations, metafields, webhooks

From our projects

All projects
EuKlar in the Shopify admin: status of the Art. 19 GPSR details
The EuKlar GPSR block on a product page

EuKlar

Shopify app, own product Coming soon to the Shopify App Store

Manages the product safety details the EU GPSR requires for every product in a store and shows them on the product page. A report shows what is still missing.

  • Assign by collection, vendor or rule
  • Safety warnings in 7 languages
  • Daily check against EU Safety Gate
View project EuKlar
  • EU Safety Gate
  • CPSC (US)
  • OPSS (UK)
  • Health Canada
Your catalogBarcode, model number and brand per variant
Alert on a matchwith a link to the official source

Recall Monitor

Shopify app, own product In development

Checks a store’s catalog every day against official recall lists from the EU, the US, the UK and Canada and reports matches with a link to the source.

  • Matching by barcode, model number and brand
  • Four official sources
  • Daily and automatic
View project Recall Monitor

Frequently asked questions

Custom app or public app?

A custom app is built and installed for a single store, without review by Shopify. A public app is open to all merchants in the Shopify App Store and is reviewed by Shopify first.

Will an app slow down the store?

Not if it is built carefully. Our theme blocks are delivered with the page and load no extra JavaScript.

What happens to the data when a merchant removes the app?

We implement Shopify’s privacy webhooks. Store data is deleted after uninstalling, as Shopify requires.

Planning an application?

Describe your project in a few sentences. You will get a personal reply and, if it is a fit, a time for a first call.