You use this app in a similar way you would if you were tossing a coin to make a decision and your mind was unsure.  It is not a magical cure to your decisiveness.  However it can help take out the stress.  For example “Shall I buy a pizza today” or “Shall I buy a meat pizza”.  Just hold the phone with app loaded in your hand.  Ask the question out loud or in yourmind and spin the wheel of fate.