Based on the user reviews of the Yandex Metrica app on Google Play Store, here are three cons and pros in English, each within 15 words: **Cons:** 1. "Invasive and stubborn ads that don't allow you to close them easily, frustrating experience." 2. "Insufficient battery life and high data usage, strains mobile device's resources." 3. "Difficult to navigate and understand the app's features, steep learning curve." **Pros:** 1. "Accurate tracking of app usage and behavior analysis, helpful for monitoring performance." 2. "Easy integration with Google Analytics, simplifies data tracking and reporting." 3. "Robust feature set, including A/B testing and user segmentation, for advanced optimization." Please note that these points are based on a general summary of user reviews and may not reflect the opinions of every individual user.