Based on the users' reviews, here are three cons and pros of the Trianglenoid app, each limited to 15 words: **Pros:** 1. "Interactive lessons and exercises help me improve my understanding of geometry and spatial reasoning skills." 2. "The animations and visuals are engaging, making complex concepts easier to grasp and retain." 3. "The app's gamification features motivate me to practice and learn new trigonometry concepts regularly." **Cons:** 1. "The app's interface can be overwhelming, with too many options and buttons on the main screen." 2. "Some users reported issues with the app's accuracy, with incorrect solutions to certain problems." 3. "Lack of support for specific math standards or curriculum requirements may limit its usefulness for some teachers." Please note that these are general summaries based on the user reviews, and may not represent the opinions of all users.