Online reviews
When I use an app in the play store, try a video game, or eat out, or when I interview with a company, I will often write a review. Usually not if it’s just mediocre or OK, more so if the service or product is amazing or terrible.
Part of it is sour grapes at wasting time or money and part of it is a kind of thank you for great service.
As a tool for finding new customers, there’s quite a few apps that people use to help evaluate their products like Google my business, Yelp, & Glassdoor.
In the old days we would say the 20-1 rule, or you give great service to twenty people and one of them will recommend you once. If you give bad service to one person they tell twenty people. These days online reviews can go viral, they hang around forever and there are a huge amount of bots to help artificially inflate your scores.
My advice would be:
Online reviews can strongly influence purchasing behavior and are now part of the sales process
Be aware of reviews of your logo. Have a notification system so you can read, respond quickly and humanise feedback
Be cautious of the reviews where half are 1 star and half are 5 star it indicates awful service with a bunch of fake reviews to bolster score
The most trusted rating is 4.8 not 5 star. People would rather know the warts and all, in their evaluation process