ofirltd

Displays prices in both hrk and euro, uses fixed rate defined by Croatian National Bank. Options to display all prices or only totals.
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konvertiraj.me

Denis Bisteinov

DB Woocommerce Price Converter is an easy solution to manage the prices if you need to convert them from one currency to another.
This plugin is relying on a 3rd party service of CBR that is provided as a freeware and is documented here https://www.cbr.ru/development/sxml/ and here https://www.cbr-xml-daily.ru/ 
Terms of Use: https://www.cbr.ru/user_agreement/

DB Price Converter for WooCommerce

The plugin is used for converting the prices from one currency to another.

konvertiraj.me vs DB Price Converter for WooCommerce