An app that schedules your most important tasks around your peak energy levels

What do you think about a tool that can plan & schedule your most important tasks around your personal energy level and peaks?

Often times I feel my most important tasks are performed when I am quite low energy wise which leads to poor productivity and output.

I’m thinking about building an app that figures out your “high energy” times—like when you’re most alert or creative—& helps you schedule focused work

Do you think a tool like this would help you?

Would love honest thoughts about this :)