TripAdvisor's share of UK hospitality reviews fell from 34% to 25% in one year

"Feed It Back’s latest social review tracker reveals a significant drop in TripAdvisor usage, with its market share falling from 33.9% in August 2018, to 25.1% in August 2019.
The data, taken from thousands of reviews left of the restaurant, pub and bar and quick service industries, shows that, over the same period, Facebook experienced a positive year-on-year increase, of 3.1%, with the platform now accounting for 10.3% of reviews.
Google remains the biggest player in the industry, with its percentage of reviews in August sitting at 64.3%.
The rise in prevalence of Facebook and the decrease in TripAdvisor usage has impacted the average social review score in the industry, which has risen from 4.0 out of 5 in August 2018, to 4.3 in 2019.
This increase has been driven by a spike in review scores across all platforms over the past year, with Facebook rising from 3.9 out of 5, to 4.1 over the same period. TripAdvisor grew from 3.9 to 4.1, and Google increased from 4.1 to 4.3.
Looking at the split between the sectors, the average social review score for the pub and bar industry rose from 4.1 to 4.3; while the restaurant industry increased from 4.0 to 4.3.
The main driver behind the spike in positive reviews for both sectors was the Facebook channel, where the average review score for restaurants rose from 4.0 to 4.6 out of 5, while pubs and bars experienced an increase from 4.4 to 4.6."

Source:  Data from Feed Itr Back, reported in a press release, 2nd September 2019