BUDGET vs ACTUAL expenses tracking

I am looking for the same thing.  I need an App/Widget/Dashboard for each PROJECT.  The BUDGET should be allocated by CATEGORY - based on the line items on the approved estimate.  My Cost is the BUDGET to each line item, in its specific category.

The BUDGET should show me the total budget allocation for all these categories.

The EXPENSES, as they are uploaded (vis the receipt scanner in the app, or as they are added via bills) should then deduct their dollar amount from the BUDGET in their appropriate category, therefore showing me the reiming budget for each category.

Is this not an obvious need for ANY business owner to stay on budget?