Based on the reviews on the Apple App Store, here are three pros and three cons of the Grappling Master app: Pros: * Users praise the app's vast collection of grappling techniques and tutorials. (15 words) * Many appreciate its clear and easy-to-follow instructions for beginners and advanced grapplers alike. (15 words) * Reviewers commend the app's ability to help build confidence and improve their grappling skills. (15 words) Cons: * Some users find the app's navigation and menu structure confusing and hard to use. (15 words) * A few reviewers complain about the app's lack of personalization features and customization options. (15 words) * A few users experienced glitches and bugs that interrupted their training sessions. (15 words) Please note that these points are based on a summary of the reviews on the Apple App Store and may not reflect the opinions of all users who have tried the app.