Based on the users' reviews of the Absorb Stack app, here are three cons and pros in English, limited to 15 words each: **Cons:** 1. "Glitches and errors occur frequently, making it frustrating to use." (12 words) 2. "Limited customization options for personalization and adaptability." (12 words) 3. "Customer support is slow to respond and solve issues." (12 words) **Pros:** 1. "Intuitive interface makes it easy to navigate and learn." (12 words) 2. "Effective study tools and features help improve retention and comprehension." (13 words) 3. "Users see significant improvements in knowledge retention and recall." (13 words) Please note that these conclusions are based on the users' reviews available on the App Store, and may not be exhaustive or representative of all users' experiences.