Website & branded sites

App & Plugin Development

Expert app development for UK sellers

Custom apps, plugins and integrations that add the features your store is missing. Marketplaces bring volume; your own website builds the brand, the margin and the customer list. Our developers build and maintain Shopify, WooCommerce, BigCommerce, Magento and custom headless stores, and keep them fast, secure and converting.

Requirements and specification
App / plugin development
API integrations
Admin interface

Choose your marketplace or platform

App Development is available on 13 channels. Select one to see what’s included and how we adapt it.

Shopify. App Development for Shopify: The most popular hosted e-commerce platform for D2C brands, with a huge app ecosystem.

View service & pricing

App Development that delivers measurable results

Fixed

Price agreed before every build starts

E-commerce platforms supported

90+

Target mobile performance score

What’s included in app development

Scope depends on your plan — see the pricing tiers below.

Requirements and specification

App / plugin development

API integrations

Admin interface

Testing and review

Documentation and support

How it works

Our app development process

01 Discover
Goals, sitemap, integrations, content and success metrics agreed.
02 Design
Wireframes and UI designs approved page by page on desktop and mobile.
03 Build
Development, integrations, content load and full QA on real devices.
04 Launch & care
Go-live, redirects, tracking and an ongoing care plan.

Pricing

App Development pricing

Choose a plan or ask for a custom quote. Prices in GBP, excluding VAT.

Starter

Small scope

from £1,495

one-off · excl. VAT

Requirements and specification
App / plugin development
API integrations
1 revision round

Choose Starter

Available for 13 marketplaces and platforms, including:

“We appreciate Farioxa’s positive attitude and commitment to our brand. Their team provides valuable support as we work towards our growth goals.”

SafNext

Read all 22 client reviews

Frequently asked questions

A theme-based store typically takes three to six weeks; custom designs and complex integrations take eight to sixteen weeks. You get a dated plan before we start.

Yes. We build with editable sections and give you a recorded walkthrough and written guide at handover.

Yes. We migrate catalogue data, customers, orders, URLs and SEO redirects, and test the migration before launch.

Yes. Monthly care plans cover updates, monitoring, backups, small changes and priority support.

You do. Stores, domains, themes and accounts are set up in your name.