Ahh I’m working on exact same project. I applied to YC with the idea and was told that “nobody wants this” during the interview.

There’s a ton of problems in the space around privacy and UX. But I’m incredibly excited about projects in this space because in modern society we’re basically surrounded by a million unhealthy things designed to tempt us. Logging forces you to “stay honest”. I’ve been shocked already by how many unhealthy habits I underestimated and how many healthy habits I overestimated.

My #1 priority is just to improve my own physical and mental health. Whether there’s a market for this stuff, who knows.

Good luck!