I'm curious. Do you price check each time?? Is there an app that can determine which is cheapest? If the prices are about the same can you hail both and take

I'm curious. Do you price check each time?? Is there an app that can determine which is cheapest? If the prices are about the same can you hail both and take the one that arrives first (& cancel)? (Getting from a to b is a commodity) Does the uber app detect that you have a competitor and can it be smart enough to price accordingly?