There really isn’t a way to get around the fees, you can offer account to account transfers i.e. set up a direct debit but then by not accepting cards you maybe rejecting a lot of customers.

I would focus on your current role in the startup because depending on your knowledge level you hamper rather than help development of the product.

Dm Ed you

I really like the idea, our company has hired social media managers to manage what we post in different social media channels and this would definitely save them so much time, to have a social media hub.
Some thoughts/Questions:

1. Have you considered Gen AI for the responses, something like write?
2. The website I feel like needs a lot of work, has alot of text and some things didn’t seem to fit in the with the design of the whole website i.e. the text on the mac, i think is a different font. I would also recommend maybe have a demo video play.
3. Maybe worth integrating with customer feedback websites like yelp or trustpilot?

Sorry I don’t quite understand your situation, you have paid users in US but want more, or is the conversion from free to paid is too low?