RoomKey is leading in Top 100K Sites.
Whittl has better usage coverage in more websites categories. Including Beauty, Beauty & Fitness, Health, Social Network and 2 other categories.
RoomKey is leading in Travel, Accommodation & Hotels, Real Estate, Recreation & Hobbies and one other category.
RoomKey is leading in most countries, including United States, Spain and United Kingdom.
Whittl hasn't got a lead over RoomKey in any country.