So why do you need a currency converter on your phone although the internet offers hundreds of them for free? Simply because international data roaming still isn't the cheapest thing to do. The MoMPF Currency Converter does just that; it converts one currency to another. In addition, if you enter the totals as stated on your exchange receipt, MoMPF Currency Converter uses the effective exchange rate including the commission. Another useful feature for the frequent traveller is the converter's ability to store up to seven previously used exchange rates for later use.