App reviews are highly opinion based and not fact based and normally not a great way to gauge if an app is good or bad. They sure can be helpful (for a developer), but most reviews are composed of biased rants and half-legible reviews which are hard to sift through. Sadly, most people judge an app just by looking at the app’s review scores even though it does not actually reflect the quality of an app.
People want to be heard, and giving a 1-star or 5-star rating adds oomph to your opinion.
Check out this fantastic article by John Saito who has sifted through 1000’s of app reviews to provide his take on app store reviews. Quote from the article:
After crunching the numbers, I found that over 70% of our app reviews were either 5-star or 1-star reviews. Over two-thirds of reviewers either loved or hated our app.