Honest Feedback for Productivity Analyser

I have come up with an interesting startup idea and wanted to know what all you fellow IndieHackers think?

Check out the website.
https://theproductivityassistant.com/

It is an application that monitors how you work, asks you whether you think you are being productive, and using that, works out what activites make you more or less productive. Oh, and it tells you when you need a break to help you feel more energised.