Ride-share is a transportation model in which passengers arrange rides through digital platforms, typically using smartphone apps. Drivers, often using their personal vehicles, provide on-demand service, with pricing determined by algorithms that factor in distance, time, and demand. Popular ride-share companies include Uber and Lyft, which have reshaped urban mobility, reduced reliance on personal cars, and challenged traditional taxi services. The sector is closely watched for its regulatory, labor, and environmental impacts.