Startup Idea: Business Activity Tracking App

Startup idea to develop a comprehensive app that keeps track of hours worked, miles driven, and other business expenses for reimbursement or tax claims, enhancing the current method of using excel spreadsheets.

Yes I have. I've tried a few apps but none have been sufficient. I would like to find something that tracks my hours worked and miles driven, ideally through an app. It would be useful if it also kept track of my other business expenses that I can be reimbursed for and/or claim on my taxes. I currently log these things in an excel spreadsheet on my laptop. It would be easier if an app did this though. I used search terms including "tracking for work" "business expenses" "mile tracker" "hour tracker".