Based on the users' reviews of the "Learn Russian Free" app, here are three cons and pros in 15 words or less: **Cons:** 1. Poor grammar explanations, leaving users confused and unsure how to apply grammar rules. 2. Limited interactive exercises and too much repetition, leading to boredom and disengagement. 3. Lacking in cultural context and authentic language use, leading to lack of real-world relevance. **Pros:** 1. Large selection of lessons and phrases, covering various topics and difficulty levels. 2. Easy-to-use interface and navigation, making it accessible to beginners and intermediate learners. 3. Free version provides decent content, making it a great starting point for those new to Russian.