Waze is one of the world’s largest community-based GPS navigation app, Waze functions like a crowdsourced social network, one that provides direction in tandem with community feedback. With Waze, users can alert others to accidents, alternative routes, road closures, police officer sightings, and other such impediments. Google bought Waze in 2013, yet it remains distinct, namely because of the aforementioned social features. It works on smartphones and tablet computers that have GPS support. It provides turn-by-turn navigation information and user-submitted travel times and route details, while downloading location-dependent information over a mobile telephone network . Waze describes its app as a community-driven GPS navigation app, which is free to download and use.