I built a free Android soundboard that works with a External keyboard

A developer built CTunes, a free native Android soundboard app that maps keyboard keys (A-Z, 0-9) to audio files, supporting both on-screen taps and physical Bluetooth keyboards. The app is built in Java with a simple architecture using Activities, SQLite for persistent storage, and MediaPlayer for audio playback. It is ad-supported, fully offline, and designed for live performance, streaming, or teaching use cases.