App Development built for Custom & Headless
Custom apps, plugins and integrations that add the features your store is missing. On Custom & Headless, our website & branded sites specialists adapt the work to how the platform operates — its rules, search, customers and fees — so your store performs. Bespoke and headless storefronts (Hydrogen, Next.js, Astro) for brands that need maximum speed and flexibility.
- Decoupled front end
- Best-in-class speed
- Any CMS or commerce back end
- Built for scale and experimentation
What’s included for Custom & Headless
Delivered by our website & branded sites team, tailored to Custom & Headless.
Requirements and specification
App / plugin development
API integrations
Admin interface
Testing and review
Documentation and support
How it works
How we deliver app development on Custom & Headless
- 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 for Custom & Headless — pricing
Starter
Small scope
from £1,495
one-off · excl. VAT
- Requirements and specification
- App / plugin development
- API integrations
- 1 revision round
Growth
Medium scope
from £3,995
one-off · excl. VAT
- Requirements and specification
- App / plugin development
- API integrations
- Admin interface
- Testing and review
- 2 revision rounds
Enterprise
Large scope
from £8,995
one-off · excl. VAT
- Requirements and specification
- App / plugin development
- API integrations
- Admin interface
- Testing and review
- Documentation and support
- 3 revision rounds + QA report
All prices are in GBP and exclude VAT at 20%.
Need something different? Ask for a custom quoteFrequently 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.
Plans start from £1,495 (excl. VAT): Starter from £1,495 one-off, Growth from £3,995 one-off, Enterprise from £8,995 one-off. Custom quotes are available for larger catalogues and multiple channels.