Considering Publicly Building a Stock Technical Analysis Tool

I am considering publicly building a stock technical analysis tool. So for example you enter in a stock ticker like ZZFMG, and the tool will list its analysis i.e.: "Moving Average-Bullish crossover occurred as MA50 crossed above MA200 (Golden Cross), indicating an uptrend. MACD-Positive histogram and MACD above the signal line indicate strong bullish momentum. ....." If such a product was built, would it be very useful to you and how much would you be willing to pay in monthly subscription?