Why it's similar
Booking.com shares Tripadvisor's hotel-and-travel booking core, letting you search and reserve accommodations and trips worldwide.
How it differs
It's booking-first rather than review-and-discovery-first like Tripadvisor, with one of the deepest hotel inventories anywhere. It carries a high rating on an enormous base (nearly two million ratings), making it the most proven alternative if your main goal is actually booking a place to stay.
