Startup Idea: Farm Workforce Time Tracking App

Startup idea to develop a mobile application that enables agricultural businesses to track the time employees spend working in each field. The app would utilize GPS or cellular location data to ensure accurate time and location tracking.

I have a business in agriculture. One of my problem is to know exactly the time my workers work in each field (and when) to really calculate the cost of the product.

I have a idea of this answer, but I think an app could be great to follow the work and the time they take to do it.It would have to work with gps, or at least on cellphone data because wifi is, of course, not availble in the field.