RelayRides is described as 'peer-to-peer car sharing marketplace. Rent cars from people in your community. Available nationwide, with insurance included and no membership fees'. There are more than 10 alternatives to RelayRides for Online / Web-based, iPhone, iPad and Android. The best alternative is Kyte | Rental Cars Delivered To Your Door, which is free. Other great apps like RelayRides are Getaround (Free), SocialCar (Free), Ridengine (Free) and Car2Go (Paid).
SocialCar is the first peer to peer car rental service operating in Spain. It allows car owners to make some extra cash out of their underutilized cars by renting them to neighbours or travellers who occasionally need a car.
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.
easyCar Club is the UK’s leading peer-to-peer car and van rental market place. With the easyCar Club app, car owners have everything they need to make money from their car when they’re not using it, and drivers can access cheap, convenient, local cars for hire around the UK.