Are you selling products or taking donations?

This plugin lets you add custom fields to Woo: https://www.ads-software.com/plugins/wc-fields-factory/

In Ecwid, you can use this extension to add custom checkout fields to ask more details from the customers at checkout: https://www.ecwid.com/apps/featured/checkout-questions

This isn’t free though. It will require you to have a paid Ecwid subscription ($15/month) and the extension itself will cost $5/month.

Thanks,