isaacsa51/minus ? reverse-engineered prompt

Build me a modern Android budget tracking app called Minus that makes it really easy to log expenses, especially recurring bills and credit card due dates. I want the main flow to feel fast, like a calculator, so I can type an amount, do simple calculations if needed, and save it without filling out a bunch of forms.

The app should help me set a budget for daily, weekly, biweekly, or monthly periods, show how much I have left, and remind me before subscriptions or bills are due. I also want a history view that groups spending by current period, upcoming recurring payments, and past periods, plus simple charts or insights so I can understand where my money is going.

Please include CSV export, home screen widgets for quick stats, and a Wear OS companion version for entering expenses from my watch and seeing recent activity. Make it clean, easy to use, and polished with a material style.