Problems with CURCY plugin – WooCommerce Multi Currency Premium

Hi, how are you? I installed CURCY – WooCommerce Multi Currency Premium plugin in my store, but it doesn’t work for 3 currency conversion in free mode. I configured the three currencies and it doesn’t work on the site, the selector remains, but when I select the desired currency, nothing happens on the site. I wanted help with this problem, do I have to pay for the plugin subscription or something similar?

Another thing, do you have any plugin that makes the currency exchange automatically, identifying the user’s location by API? If you have a similar plugin, please send me an email: marcos.viniciusls@yahoo.com.br