Today, the reviews and ratings of a product/service contribute a lot in the decision to purchase. For instance, we go through restaurant reviews before making a reservation, have a look at the movie ratings before buying the tickets and the same is the thing with mobile apps - we read app reviews before installing an app.
Mobile app reviews matter, as it indirectly affects the visibility of the application in the respective app stores, while also determining the chances of being featured on the homepage of the app stores.
http://mobileappdaily.com/importance-of-mobile-app-reviews/
An appealing website design is important, but you can’t lose sight of what your website is really for: to convert traffic into lead-form submissions, phone calls, physical-location visits, contact-form submissions and sales. Without these actions, your business will not generate revenue. Naturally, the more conversions your website produces, the more revenue your business is going to produce.
https://www.entrepreneur.com/article/250059/