I built a very simple summarization tool (www.summarify.me) that summarizes any kind of Text, PDF, Youtube Video, Blogs, Webpages and Audio Files in 19+ languages within seconds

We did an unprepared PH Launch- Finished #10- 300+ upvotes- 400+ Signups within a week- $200 in Revenue

I realised that people like simple tools which are good at what they do :)