I need an Android and iOS application that lets users quickly discover Telegram communities of interest. The core flow is simple: a user opens the app, types or browses a term, and receives results that include both groups and channels. From there they can tap once and be taken straight into the chosen Telegram space via the standard join link. Key user actions • Search across public groups and channels in a single unified result set. • Narrow results by Group/Channel category and by minimum or maximum member count. • Tap “Join” to open the Telegram deep-link and subscribe immediately. I am happy with either a native build (Kotlin + Swift) or a cross-platform stack such as Flutter or React Native—as long as the final APK and IPA meet current Google Play and App Store guidelines. If you already have experience working with the Telegram Bot API, TDLib or deep-link schemes, please mention it; I will rely on that for smooth user onboarding. Deliverables 1. Android and iOS builds ready for TestFlight / internal testing. 2. Full source code. 3. Brief README explaining environment setup and how to refresh the group/channel index. 4. Ad setting dashboard which can able to control or change the ad code from the web itself Acceptance is complete when I can: • install each build, • search any keyword, • apply the two filters, • and join a listed community without errors. Let me know a realistic timeline and which tech stack you propose so we can get started right away. The can not be redistributed nor sold by the developer.