Based on the users' reviews of the Tetround app, here are three cons and pros: **Cons:** 1. "Disappointing experience with frequent crashes and freezing, wasting my time." 2. "Awkward user interface makes it hard to navigate and understand gameplay." 3. "Too many ads interrupting gameplay, very frustrating and annoying." **Pros:** 1. "Enjoyable and challenging puzzle game, keeps me engaged for hours." 2. "Beautiful graphics and sound effects, visually stunning and pleasing." 3. "Regular updates with new levels and modes, always something new to look forward to." Please note that the reviews are subject to change and might not reflect the current state of the app.