I am going to give my opinion just on a first impression analysis. You need to change the name of your startup. tinj.co? It has nothing to do with anything and inevitably you need to explain it with three words after stating your name, but my problem is your three words don't help define tinj.co. So I went to your website and I was like OK, tinj.co has to stand for something. But it just says a new way to rate. 5 stars is no good anymore. In conclusion, I am all for your idea, but your name its making me angry.

--note: I know nothing more than my rottweiler sitting next to me. The difference between me and most people is that I will tell you I know nothing. So just take the advice and do with it what you want.