To go by a fixed price you have to order the taxi from within the taxi app: Download the taxi app to your smartphone Type in your pickup and destination addresses Choose the fixed price option  When booking at a fixed price you avoid worrying about unexpected traffic changes, traffic congestion etc. that prolong your ride and thus increase the price. With a fixed price you know the price in advance, no matter the unexpected delays in traffic that may occur. Read more about the fixed price option here.