MarketVision - see market share data for a stock easily

Hello guys,

I'm a 17-year old investor and entrepreneur, who has a bit of programming knowledge behind him. What I created recently is MarketVision, or an app that is showing you a pie chart of the exact market share of stocks easily, so you can get to know what is their position in the market

I made an introductory video here: https://youtu.be/0MBwn23pHDo

Here's the link to the app: https://market-share-chart.sketchthread.com/

I added a 30-day free trial. Tell me what you think!