Product Default Currency
Define a product price on the administration panel with selected currency. And the frontend price will change with updated currencies. You don't need to change product currency every time the price changes. Our plugin is available for Woocommerce and Prestashop.
Woocommerce Plugin Url:
Product Default Currency for Woocommerce
Prestashop Module Url: Product Currency for Prestashop
If you want for the other platforms please write to us from the contact page.