FloatCalc+ is a floating calculator that stays on top of any app, so you never have to switch screens just to work something out. Calculator, unit converter and currency converter all live in the same overlay window, a tap apart. Drag the window wherever you like and copy any result with a single tap. It is free with ads and no time limit, light and fast, and works offline (rates are cached daily).
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Do I have to close my app every time I want to calculate?
No. FloatCalc+ works as a floating window that stays on top of other apps, so you can calculate without leaving your shopping, banking, or browser screen.
Where do the exchange rates come from?
It uses real-time ECB (European Central Bank) rates, refreshed daily. You can convert USD, EUR, JPY, KRW, CNY and 30+ world currencies right inside the overlay, and rates are cached each day so it works offline too.
How much can I use for free?
The floating calculator is free to use with ads and no time limit. The free tier includes the default theme and length conversion; Pro removes the ads and adds the 7 premium themes, the remaining unit categories, the advanced currency converter, panel settings and Quick Launch. You can also watch a short rewarded ad to unlock any single Pro feature free for 24 hours.