Based on the users' reviews of the Enigma app, here are three cons and pros: **Cons:** 1. "Lack of variety in puzzle types, gets repetitive and boring." - Limited puzzle options. 2. "Glitches and crashes frequently, frustrating experience." - Technical issues mar gameplay. 3. "No option to skip or skip ads, intrusive and annoying." - Ad format not user-friendly. **Pros:** 1. "Challenging yet solvable puzzles, great for math enthusiasts." - Engaging and difficult puzzle-solving. 2. "Beautiful graphics and sound, visually stunning." - Aesthetically pleasing design. 3. "Sense of accomplishment when solving complex puzzles, satisfying." - Satisfying experience when solving challenging puzzles. Please note that these are summaries of the reviews, and individual experiences may vary.