We stream the prices from the exchanges we’ve partnered with and calculate a Volume Weighted Average Price (VWAP). Our derived rate takes into account other factors, such as market depth and volatility. We then apply a mark-up on our derived rate, which is the rate you receive in the app—this is dependant on what plan you are on. (See our Fees page for details.) The price you pay is locked in at the time of the exchange settlement.