In this talk, I will explore practical strategies for using AI responsibly in your Android apps. We will start with the “Ugly”, by showcasing a basic implementation and exploring the consequences. We will move forwards by improving our strategy but exposing the “Bad” pitfalls and leaks we could face. To finish, I will walk you through the “Good” strategy to craft secure prompts, leakproof API keys, and build robust architectures for cost-optimized AI integration in your Android apps.