Based on the users' reviews of the Futoshiki World app, here are three cons and pros, each limited to 15 words: **Pros:** 1. Users praise the app's addictive puzzles, stating they are "challenging yet solvable". 2. Many reviewers appreciate the app's diverse selection of Futoshiki puzzles, calling it "engaging" and "varied". 3. Some users appreciate the app's simple, intuitive interface, describing it as "easy to navigate". **Cons:** 1. Some users criticize the app's limited features, saying it lacks "extra modes or levels" to keep them engaged. 2. A few reviewers find the app's graphics and design to be "basic" and "unattractive", lacking "visual appeal". 3. Some users report issues with the app's occasional bugs and freezes, describing it as "unstable" and "glitchy". Note: The reviews are based on a snapshot of the app's reviews on the Apple App Store. Opinions may vary among users.