Wattpad, a social network for readers and writers, has a 4.6 average rating. It's free with in-app purchases. Spotify has a 4.8 average rating on the App Store. It's free, but you need a subscription to get the most out of it. Waze, Google's other maps app that intelligently avoids traffic, has an average 4.8 rating on the App Store. It's free. Gasbuddy, a gas price comparison app, has an average 4.7 rating on the App Store. It's free. Groupon, a deals aggregator, has an average 4.8 rating on the App Store. It's free. Fandango, an app for looking up movie times and buying tickets, has an average 4.8 rating on the App Store. It's free. The Domino's app for ordering pizza has a 4.8 average rating. It's free. The Under Armour-owned app lets you track food intake and exercise and it's got a 4.7 average rating. It's free with in-app purchases. Bible has a 4.9 average rating and it's free.Naturally, the app with the highest percentage of 4- and 5-star ratings in the history of the App Store is a meditation app, Relax Melodies, with a 4.8 average rating. It's free with in-app purchases. Read their full analysis, including games, here.