RoomKey is leading in Top 10K Sites and Top 100K Sites.
Whittl has better usage coverage in more websites categories. Including Health, Beauty, Beauty & Fitness, Internet & Telecom and 2 other categories.
RoomKey is leading in Accommodation & Hotels, Travel, Outdoors, Recreation & Hobbies and one other category.
RoomKey is leading in most countries, including United States.
Whittl hasn't got a lead over RoomKey in any country.