Android Control App for ESP32

I’m looking for a clean, lightweight Android application whose sole purpose right now is to control my ESP32-based hardware. The interaction must be through on-screen buttons only—no sliders or voice commands at this stage... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, Android App Development, Bluetooth, C Programming, Java, Mobile App Development, Mobile Development, User Interface / IA)