Based on the user reviews of the Zen Pair app, here are three cons and pros, each 15 words or less: **Cons:** 1. "Disappointing lack of customization options for mindfulness exercises and music" 2. "Limited tracking features for progress and achievements" 3. "Occasional crashes and slow loading times on older devices" **Pros:** 1. "Calm and soothing ambient sounds and music for relaxation" 2. "User-friendly interface with gentle guides for meditation and mindfulness" 3. "Effective mindfulness exercises and guided meditations for stress relief"