Configurator in your theme
The builder runs in its own frame inside your theme, so it does not weigh down the rest of the shop.
Kastomiko / Shopify product customizer development
Shopify developers
Shopify product customizer built around your products
When ready-made personalisation apps run out of options, we build your own: a configurator in your shop, the right price in the cart, and the design attached to the order all the way to production.
What you get
What we do on Shopify
Correct price in the cart
Prices worked out by the configurator reach checkout unchanged, in every market and currency.
Design data in the order
Each line item carries what the customer designed, with a preview for your team.
Previews in customer accounts
A customer account extension shows the real design in the order, not a generic product picture.
Custom apps
Your own apps for what the store lacks. We built a parcel locker picker for InPost and DPD Pickup.
Theme sections
Landing pages, calculators, product blocks and galleries your team can edit in the theme editor.
Languages and markets
Translated pages and addresses, hreflang, local prices. Our shop runs in ten languages.
Orders to your systems
Webhooks pass orders to your CRM, warehouse and production. See production software.
Limits we already know
Shopify has rules you only find when you hit them. We have run into these on a live shop, so you do not have to.
- Checkout-step extensions and custom pickup-point functions need Shopify Plus. We built a way around this on Basic, with the choice made after payment.
- Line item properties starting with an underscore are hidden from customers, which matters for what your production data shows.
- A single Liquid block is limited to 256 KB, so large scripts belong in assets.
- The translation app can override what you push in the theme, so we check the live store and not only the code.
When you need this
- A personalisation app cannot handle your rules or product.
- You pay monthly for several apps that could be one.
- Your team copies design data from orders by hand.
- You are moving into new countries and prices or translations keep breaking.
FAQ
Questions we often get
Do I need Shopify Plus?
No. Our own shop runs on a lower plan. Plus only matters for specific things such as editing checkout steps, and we will flag it up front if your project needs it.
Will a custom configurator slow my shop?
It runs separately from the theme, in its own frame, so product pages keep their speed.
Can you work with my existing theme?
Yes. We add sections and blocks to your theme, and we check the live version first, because the editor changes templates.
Do you only work with Shopify?
No. Shopify is where most of our experience is, but configurators and systems can connect to other platforms through an API, or run on a custom site.
Next
Related services
Contact
What should we build for you?
A few lines are enough. We'll reply with what we can do and how we'd approach it.
Prefer email? work@kastomiko.com