Uber's dynamic pricing revelations shows firm analysing battery levels

Uber has closely studied how dynamic pricing functions and when it's acceptable to users. One discovery is that round numbers signal haste and sloppiness where riders appear to believe that more precise numbers (for example, 2.1 instead of 2) have been carefully worked out by an algorithm. The company's head of head of economic research Keith Chen says that riders will pay up to 9.9 times the normal price if their phone's battery is almost dead, information the Uber app openly collects in order to determine when it needs to shift to power-saving mode. However, Chen says the company does not use battery information in setting prices.

https://www.npr.org/2016/05/17/478266839/this-is-your-brain-on-uber