We’ve all been through the hassle of looking for the best exchange rate before travelling abroad. Currenseek takes care of that problem by telling you where the best rates are, and how best you can get there. The app strives to give you the best bang for your buck by also saving you from all those hidden costs when swiping credit cards overseas. We speak to David Oh and his team on the popularity of Currenseek, the challenges of building the app, and plans to expand in the near future.