Otter is a visual tool to quickly analyze iOS applications through data from the iOS App Store.
At a glance:
Analyze user sentiment using data from the last 100 user reviews.
Compare sentiment across multiple applications simulatenously.
Compare applications by sentiment and popularity.
The most commonly used words are represented as circles - size corresponds to frequency and color to sentiment. The larger a circle, the more commonly used the word. The greener the circle, the better a word's sentiment.
This is a working prototype and has limited support for non-US applications.