IOS Expense-Tracker Calculator

I'm urgently in need of a budget-friendly, intuitive iOS application that serves as a specialized calculator to convert linear feet into cents for tracking expenses.
It should be a basic calculator, not a scientific or graphing one.

Key features should include:
- Accurate linear feet to cents conversions
- User-friendly interface
- Fast and responsive
- Should employ industry's best practices

Ideal candidates should:
- Have exceptional iOS development abilities
- Have experience in creating calculators or similar applications
- Have a solid understanding of conversion processes
- Be able to meet tight deadlines

I'm looking to get this project started immediately.