[2026 Edition] Shopify Customs Duty Calculation App Comparison: 4 Recommended Options

As we enter 2026, implementing an app for accurate pricing and profit management is crucial to the success of your Shopify store. In particular, features such as custom option pricing, accurate profit margin tracking, and domestic and international payment support directly contribute to maximizing profitability and improving the customer experience. Efficiently managing these calculation and payment processes and ensuring error-free operation are essential to the growth of your store. In this article, we’ve carefully selected four outstanding pricing and profit management apps from the many available on Shopify, thoroughly comparing them based on the latest information and providing a ranking. We promise this information will help you select the best app for your store and operate your business with confidence.

#1

Option & Price Calculator

App URL: View on Shopify App Store

App Overview

A powerful product options calculator for custom products. It automatically calculates prices based on selected options and variations.

App Details

Key features include conditional logic for option display, bulk option import/export, and integration with dynamic pricing. It also supports complex calculations. It’s easy to install and has an intuitive interface.

Reviews

The support team is highly rated for their fast and courteous response. Some users say it instantly solved complex pricing issues and that it’s a must-have app for custom products. While some users feel it’s expensive due to its extensive functionality, they acknowledge that the functionality is well worth it.

Here are some user comments:

The support team is fantastic and responds very quickly.

This app instantly solved our complex pricing issues. Highly recommended for custom products.

Excellent at calculating the final price based on user selections.

2nd Place

Profit Calc

App URL: View on Shopify App Store

App Overview

Provides a dashboard for tracking and analyzing profits in real time. Connect with all major expense sources for accurate profit margin calculations.

App Details

Displays key metrics, such as cost of goods sold (COGS), shipping, and advertising costs, in a centralized dashboard. Customizable reports help you identify your best-performing products and sales channels. Supports multiple currencies.

Reviews

Rated as essential for monitoring profit margins and extremely easy to use. Many users report that accurate cost of goods sold (COGS) tracking has saved them significant time and money. The free plan is comprehensive, and the paid plans are highly rated for their value.

Here are some user comments:

It’s incredibly easy to use and essential for monitoring profitability.

Accurate COGS tracking has saved me a lot of time and money.

The free plan is fully featured, and the paid plans offer great value.

3rd place

Mr. Daibiki

App URL: Shopify View in the App Store

App Overview

This app automatically configures cash-on-delivery (COD) payments within Japan. You can also fine-tune and manage COD fees.

App Details

Automatically calculates fees based on the order amount and accurately presents them to customers. You can also set conditions based on specific regions and shipping companies. Extensive Japanese support makes it easy to set up for Japanese business practices. Ideal for stores that want to implement cash on delivery without complex setup.

Reviews

Highly suited to Japanese business practices, it has been praised for its intuitive and easy-to-use features. Customers have reported quick and helpful support, and that the easy cash on delivery setup has improved conversion rates. Compared to competing apps, the app’s simpler functionality and ease of use are also favored.

The following are some user comments.

It’s easy to use and fits Japanese business practices. Support was also quick and helpful.

Cash on delivery setup is now easier, and our conversion rate has increased.

I like how the features are simpler than competing apps.

4th Place

Currency Converter Plus

App URL: View on Shopify App Store

App Overview

Automatically detects the visitor’s IP address and converts it to the appropriate currency to display prices. This is an essential tool for stores aiming to expand globally.

App Details

Supports over 170 currencies, with exchange rates automatically updated daily. The highly customizable design allows for natural display that matches your store design. Even the free plan covers basic functionality, making it easy to get started even at small stores. It contributes to improving the credibility of stores selling internationally.

Reviews

Highly accurate and reliable currency conversion. Users also appreciate the extensive customization options. It’s an essential tool for international sales, and its simple installation and extensive free version are also popular.

Below are some user comments:

Highly accurate and reliable conversion. It also has excellent customization options.

The free version is more than enough for our needs.

This is an essential tool for international sales. Installation was simple.