The Backstory
The idea came from a Daily UI challenge. The theme was “Calculator.” I wanted one that converted currencies while it calculated.
Three screens: calculator, history, settings. Settings is a realtime-calculation switch and a list of currencies — 155 of them, including Bitcoin.
Calculator is the main view. Number pad, two sliders for the pair. Top is convert-from, bottom is convert-to. It calculates the thing, then shows the result already converted.
History is every previous calculation, plus a little about the app.
The Tech
React Native. A calculator is only marginally above a todo list, so there isn't a lot to discuss tech-wise. But it worked.
