Hi @sonofthelong,
I'll share insight on your query about a third-party app you want to use with your QuickBooks Online (QBO).
I've checked and didn't find a third-party app that allows you to sync WooCommerce by WordPress. I suggest you check our QuickBooks Apps Store and search for what works for you.
Post a reply if you have other questions with your QBO company. I'll be sure to get back to you.