Built a live FX calculator widget - type in any currency, see conversions update on the home screen
I got tired of opening a converter app every time I wanted to do quick "is
this a good price?" math while traveling, so I built one into my home screen.
It's a fully interactive widget for my free app FXCalc. You can tap digits and
operators directly on the widget — no app launch needed. Pick which currency
row is "active" and the others convert live as you type. Supports +, −, ×, ÷,
%, and chained expressions.
Two sizes:
- Medium: 4 currency rows + full keypad side-by-side
- Large: 3 rows stacked above a bigger keypad
Other bits:
- ~150 currencies with flags
- Rates cached so it works offline
- iOS 17+
The app itself is the same calculator at full size if you need more rows.
Free on the App Store: https://apps.apple.com/us/app/currency-calculator-fx-rates/id6766166559