JABL Works makes its own apps for retailers with physical stores and a web shop. Thirteen apps in development, eight of them ready for release. Each app solves one problem and is tested at Collett. First for the Netherlands, Belgium and Germany.
What it is
Generic apps don’t understand sizes, locations and releases. Ours do, because they come from the shop floor at Collett, where those problems show up every day.
Who it’s for
For fashion, sneaker and lifestyle retailers on Shopify with one or more physical stores. Several apps also work outside fashion, in any store with variants.
A selection of the apps
Shopify apps- 01
In-Stock Price
The ‘from’ price a customer can actually pay: the lowest available variant price on product cards and product pages, updated when a cheaper size sells out or comes back.
- 02
Stock by Store
Sizes and stock per physical store on the product page, with clear states: in stock, last pair, not in stock. Location order and visibility are managed in the Shopify admin.
- 03
Collection Pages
Brand and collection pages with a story, not just a grid: story, editorial, curated rows and product grid as blocks merchandisers compose themselves.
- 04
Badges & Staff Picks
Rule-based badges such as New in, Last sizes and Back in stock, plus staff favourites with a first name and a short note. One style on cards and product pages.
- 05
Restock Alerts
Back-in-stock alerts for one size at one store, only when that exact combination is available again. One-tap unsubscribe, no marketing opt-in.
- 06
Size Advisor
Size advice for this model from a shoe the customer already owns, with fit notes from the retailer’s own staff. Honest: advice, never a guarantee.
The stack
Languages, frameworks and tools we use- App
- Shopify React Router templateTypeScript
- API
- Admin GraphQL APIWebhooksBilling API
- Data
- PrismaPostgreSQL
- Admin UI
- PolarisApp Bridge
- Storefront
- Theme app extensionsApp blocks
- Quality
- VitestPlaywright
- Development
- Shopify CLIClaude Code
- Market
- Shopify App StoreNL · BE · DE
How we approach it
ProcessA shop-floor problem
Every app starts from a recurring problem in Collett’s store, not from a feature list.
MVP in weeks
A first working version in two to four weeks, narrow and sharp.
Tested in store
Running at Collett with real stock, real customers and the team that uses it.
Publish
Shopify review and App Store listing, first for Benelux and Germany.
In practice
Built by JABL
Frequently asked
When are the apps available?
Eight of the thirteen apps are ready for release and will be the first in the Shopify App Store. Want to test as an early adopter? Email us.
Do they work with my theme?
Yes. Storefront parts run through theme app extensions, so no code pasted into your theme.
Why fashion and sneakers?
Because sizes, locations and releases are hardest there, and we see it daily at Collett.
Do you build custom apps?
Yes, through JABL Studio. A single-store app is built on the same foundation.