hiyacar is described as 'community-based service that allows local drivers to rent cars from their neighbours. Drivers can search for and request available cars in their area that meet their specific needs, saving time, money and hassle' and is an app in the File Sharing category. There are four alternatives to hiyacar for iPhone, Online / Web-based, Android and iPad. The best alternative is ZipCar, which is free. Other great apps like hiyacar are Car2Go (Paid), Getaround (Free) and Drivy (Paid).
C2G makes using car2go on your iPhone simple, with support for ALL car2go cities, including Amsterdam, Austin, Berlin, Calgary, Duesselldorf, Hamburg, Köln, Lyon, Miami, Portland, San Diego, Toronto, Ulm, Vancouver, Washington DC, and Wien.