Based on the user reviews of the app "Learn Japanese: Characters and Kanji 1st Grade Level", here are three cons and pros in English, each with 15 words or less: **Pros:** 1. Easy-to-use interface and engaging lessons made learning Japanese characters enjoyable and effective. 2. Comprehensive coverage of 1st grade level kanji characters with clear illustrations and explanations. 3. Interactive quizzes and games helped reinforce learning and track progress with accuracy. **Cons:** 1. Lack of support for learners who are not familiar with Japanese writing systems initially. 2. Insufficient practice exercises and limited opportunities for writing and composition practice needed. 3. Some users reported in-app purchases and ads disrupting learning experience occasionally.