I've been thinking of creating a currency converter, the reason for this is I recently experienced having to get the right currency while I was traveling, however all the ones I had purchased from app store required wifi/3g/4g connection to work properly. While exploring different cities I wasn't able to connect to any sort of internet what so ever.
Therefore I was thinking of a currency converter that would be based on the current currency from the time you have internet connection and then refresh to the latest currency when the internet was available again.
I have this style: currency converter what do you think of it? It is already available through chrome and when the layout is right, I will make it available through the APP store and for Android users as well.
Thank you for all you kind inputs!