D3 IT Solutions designs and codes custom Shopify and Shopline apps, builds stores from the ground up, and keeps them running long after launch — updates, fixes, and all.
Whether your store lives on Shopify or Shopline, we handle the build, the custom app work, and the upkeep — so nothing sits half-finished.
Custom Shopify apps built around a specific workflow — checkout tweaks, inventory syncs, subscription logic, or anything the App Store doesn't quite cover. Built to Shopify's current API standards and kept updated as they change.
The same depth of custom app work, built for Shopline's ecosystem — useful if you're selling across Southeast Asia or want a lighter-weight alternative to Shopify for a specific market.
From a blank theme to a store that's ready to take orders: setup, theme customisation, product catalogue structure, payment and shipping configuration, and a clean handover.
Ongoing care after launch — theme and app updates, bug fixes, speed and uptime checks, seasonal changes, and a direct line to us instead of a ticket queue.
D3 IT Solutions is a development studio focused entirely on e-commerce — specifically the Shopify and Shopline ecosystems. We don't spread across every platform; we go deep on these two, so when something breaks or needs building, we already know the terrain.
We keep the team small on purpose — it means every project gets looked at by someone who actually built it, not passed along a chain of account managers.
Read more about us →We talk through what the store or app actually needs to do, and what platform fits.
Theme, app, or integration gets built with regular check-ins, not a silent black box.
We test across devices and payment flows before anything goes live.
Post-launch, we stay on for updates, fixes, and whatever comes next.
