> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.custompricecalculator.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What is Custom Price Calculator

Apippa Custom Price Calculator is a Shopify app that lets you charge dynamic, custom prices based on what your customer chooses or enters — instead of being limited to fixed variant prices.

## What it does

With Apippa, you add a calculator to your product page where customers enter dimensions, pick options, choose quantities, or upload files, and the price updates live based on a formula you define. When they add to cart, the calculated price carries through to checkout.

## What you can build

* **Dimension-based pricing** — charge by width × height, area (sqm/sqft), length, or weight (blinds, banners, fabric, flooring, signage).
* **Add-on and options pricing** — add surcharges for materials, finishes, extras, or personalization.
* **Quantity and tiered pricing** — price per unit, bulk discounts, or per-box calculations.
* **File uploads and custom inputs** — let customers attach artwork or enter custom text that flows onto the order.
* **And many many more use cases**

## Who it's for

Any Shopify merchant selling made-to-order, custom-sized, or configurable products where a single fixed price doesn't work — print shops, window treatments, upholstery, signage, packaging, and more.

## How to get started

1. Install the app from the Shopify App Store.
2. Build your first calculator (see **Building a Calculator**).
3. Assign it to a product and publish.
4. Preview on your storefront to see live pricing in action.

For definitions of the core building blocks, see [**High Level Definitions** ](https://support.custompricecalculator.com/en/article/high-level-definitions-d898gh/)**and** [**Element Types.**](https://support.custompricecalculator.com/en/article/element-types-1kyg13v/)