How should we grow mysummary.pro further?

Hey guys, we’re looking to scale MySummary.Pro - [Free AI summarization tool on WhatsApp]

A bit about product - It’s for anyone who consumes content by reading (news, articles, blogs, case studies) or watching (youtube, podcast, documentaries). Users simply share a link on WhatsApp and they get instant AI-powered, ad-free summaries in seconds!

It’s super easy to use & works for 99% of links. Initially I built it for myself, but its been 2 months I launched it in public.

We are receiving good feedback from users and our aspiration is to grow it more but since its a free product right now I dont want to do paid marketing.

Can you suggest me non paid ways to grow it further. Thanks