Costs of re-featuring on Product Hunt?

Hello there Indie Hackers!

I received yesterday an email from Product Hunt offering the opportunity to re-feature my macOS app PopNotes since it took a fair number of upvotes the first time. However, since that was a side project and practically there's no budget for it I'm hesitating to decide towards it. I'd be grateful if there's someone who could enlighten me about the costs of promoting a product on PH.

Thanks a lot! 🙏