Platform: Android & iPhone
When traveling abroad, you need to know just how much our weak dollar is worth. Currency is the answer, providing up-to-date exchange rate info for more than 90 currencies (from Baht to Yuan) and 100 countries. This speedy converter app displays thumbnail flags for the corresponding currencies. You can either manually refresh exchange rates or set the app to do so automatically: intervals range from every hour to every day. The Pro version nixes the ads, but we don’t think it’s worth the cash.
Free, $9.99 (Pro); www.currencyapp.com