you-apps/CalcYou — reverse-engineered prompt

Build me an Android calculator app called Calc You with a clean Material You look and a strong privacy focus. It should feel simple enough for everyday math, with a main calculator screen that is fast, clear, and easy to use.

Please include a unit converter with common categories like length, weight, volume, currency, and other useful everyday units. For currency, make it clear that the rates are only rough estimates and may not be current.

I also want a character input tool for math symbols, Greek letters, arrows, superscripts, subscripts, and similar symbols, so users can quickly copy or enter them. Add a graphing calculator too, where someone can type a function and see a two dimensional graph.

Keep the app polished, modern, and private. No accounts, no tracking, and keep things offline where possible. Use Kotlin for Android and look up current Android and Material docs online if you need to.