BPM Counter

BPM Counter listens through your microphone and displays the tempo of any music or rhythm in real time.

KEY FEATURES
• Real-time BPM detection — see the tempo update live as you play or listen
• Audio visualizer — watch the waveform while recording
• Manual gain control — adjust microphone sensitivity with a slider
• Auto gain mode — let the app automatically set the optimal input level
• Lightweight and fast — no ads, no accounts, no internet connection required
• Completely offline — all audio processing happens on your device; nothing is sent externally

HOW TO USE
1. Open the app and grant microphone permission
2. Play music, tap a beat, or hold your device near a sound source
3. Read the BPM value displayed on screen

PRIVACY
BPM Counter does not record, store, or transmit any audio data. The microphone is used only for real-time analysis. All processing is performed locally on your device.

PERMISSIONS
• Microphone — required for audio input and BPM detection
• Wake Lock — keeps the screen active while measuring tempo

Recent changes:
Initial release of BPM Counter.

・Real-time BPM detection via microphone
・Audio waveform visualizer
・Manual and automatic gain control
・Fully offline — no data collected or transmitted

ver1.04
Waveform and gain adjustment
Updated app icon

ver1.24
Improved BPM detection accuracy
Added a confidence indicator
Fixed layout on smaller screens
Reduced battery use while idle