Pruvo - Hotels prices tend to change even after reservation. Pruvo will notify you when a price drop occurs, so you can rebook the exact room at a much lower price.
Omio - GoEuro's new app, book travel transport in Europe 🇪🇺
Tingo - Find cheap hotels and discounts when you book on Tingo. Compare hotel deals, offers and read unbiased reviews on hotels.
Busbud - Search city-to-city bus schedules, compare bus companies and book your tickets online, all over the world. Busbud is the world's bus station.
RouteHappy - Flight-rating service for with details like WiFi and outlets
FAIRTIQ - FAIRTIQ is a cross-platform app and website that enables you to find cheap tickets for destinations throughout Europe.