thanks for the reply and suggestions. I agreed and feels that sponsorships (in this case) might work better for me. JV is definitely something interesting for me to try out too.

I realised that dkokelley and you shared a common advice for me and that is to grow the users first. I totally agreed with that.

This is my first web app too. So I also I like to ask in your opinion and dkokelley how long would you give your pdt/service a chance to reach product market fit? Currently I have on 30 signups. What if after 3 months it stands at 300 users? Do you use number of users as a metric?

Thank you :D