The present invention broadly comprises crowd-sourced computer-implemented methods and systems of collecting and transforming portable device data. One embodiment of the invention may be implemented as a system including an electronic device including a sensor configured to collect data, the device configured to begin collection of data based on a command from a user of the electronic device; and a server configured to issue a command to the electronic device to turn on the sensor and transmit data collected by the sensor to the server without any input by the user of the electronic device when a condition is met.