Telegram is available for download on Android through the Google Play Store and iOS via the Apple App Store. After installing the app, focus on privacy features. Telegram offers “Secret Chats” with end-to-end encryption, ensuring that only the intended recipients can access the messages. Additionally, users can enable “Two-Step Verification,” which adds an extra layer of security by requiring both a password and an SMS code. The app also allows users to control who can view their profile photo, last seen status, and phone number through customizable privacy settings.