Table 1.

A comparison of the features offered by current research methods to track location from smartphones

	P	M	FTU	Features			Signal			Extra
				AS	CR	C	GPS	Wi-fi	Ce	PI	PM	OS
PEG LOG	Android	*	*	*	*	*	*	*	*	*	*	*
AWARE (Ferreira, Kostakos, & Dey, 2015)	Android/iOS	*	*		*	*	*	*	*	*	*	*
Device Analyser (Wagner, Rice, & Beresford, 2014)	Android	*	*	*	*				*		*
EmotionSense (Lathia, Rachuri, Mascolo, & Rentfrow, 2013)	Android		*		*	*			*		*	*
Funf (Aharony, Pan, Ip, Khayal, & Pentland, 2011)	Android		*		*	*	*	*	*	*	*	*
Lifedata (Runyan et al., 2013)	Android/iOS	*		*		*	*	*	*
Google Timeline (Google, 2018)	Android/iOS	*	*	*	*		*	*	*	*	*
MetricWire (2018)	Android/iOS	*		*	*	*	*	*	*	*	*
Momento (Carter, Mankoff, & Heer, 2007)	Android		*			*			*
MovisensXS (2018)	Android	*		*	*	*	*	*	*	*	*
Ohmage (Ramanathan et al., 2012)	Android/iOS		*	*			*	*	*			*
OpenPaths (2017)	Android/iOS		*	*	*		*	*	*	*	*
ResearchKit (Apple, 2016)	iOS	*	*			*	*	*	*			*
SystemSens (Falaki, Mahajan, & Estrin, 2011)	Android		*		*				*		*	*

P = platform, M = actively maintained, FTU = free to use, AS = available in app store, CR = continuous recording, C = customizable, GPS = extracts signal from global positioning system, Wi-fi = computes location from wi-fi connection, Ce = cellular location tracking, PI = assists with accurate and longitudinal point of interest mapping, PM = allows for reliable path mapping of movements, OS = open source code