Sound Meter: dB, SPL & Level

Turn your phone into a complete toolkit — sound meter, spirit level, metal detector, compass, flashlight, and 15+ sensor tools, all in one free app.

🔧 PRACTICAL TOOLS
• Spirit Level — 2D bubble level for hanging pictures, checking surfaces, and leveling furniture
• Metal Detector — find studs in walls, locate pipes, and detect metallic objects with haptic feedback
• Decibel Meter — measure sound levels (dB) with real-time display and OSHA safety warnings
• Vibration Analyzer — diagnose equipment issues and detect vibration patterns
• Accelerometer — measure G-force, vehicle acceleration, and impact force

🧭 COMPASS & NAVIGATION
• Digital compass with magnetic heading and cardinal directions
• GPS coordinates (latitude, longitude, elevation)
• Real-time altitude calculator using barometer + GPS
• Tilt-compensated orientation for accurate readings
• Magnetometer with field strength display (µT)

📊 SENSOR DASHBOARD
Monitor 10+ phone sensors in real-time:
• Accelerometer (X, Y, Z motion)
• Gyroscope (rotation tracking)
• Magnetometer (magnetic field strength)
• Barometer (atmospheric pressure)
• GPS / Location
• Proximity sensor
• Ambient light sensor
• Battery level and charging status
• Sound level (decibels)
• Pitch detector (frequency and musical note)

🔦 FLASHLIGHT & LIGHTING
• Powerful LED flashlight with instant toggle
• Strobe light (1–20 Hz adjustable) for parties and events
• SOS morse code signal for emergencies
• Red light mode to preserve night vision
• Screen light with customizable colors
• Auto-off timer (5, 10, 15, 30 minutes)

🎤 CONCERT MODE
Stand out at concerts, festivals, and live events:
• Scrolling text messages with emoji support
• 10+ templates (MARRY ME, HAPPY BIRTHDAY, I LOVE MUSIC)
• Beat-sync strobe — flashlight pulses to music rhythm
• Color effects: solid, gradient, rainbow animation
• Share to TikTok, Instagram, and Snapchat

🎵 AUDIO ANALYSIS
• Real-time beat detection for music-reactive lighting
• Pitch detection — identify musical notes (A4, C5, etc.)
• Sound frequency analysis with FFT
• Adjustable microphone sensitivity

💡 WHO IS THIS FOR?
✓ Home improvement — hang pictures straight, find studs, check surfaces
✓ Construction & DIY — level measurements, metal detection, vibration analysis
✓ Outdoor & hiking — compass navigation, altitude tracking, GPS coordinates
✓ Music & concerts — concert lighting, beat-sync strobe, sound measurement
✓ Students & teachers — physics demonstrations, sensor exploration
✓ Sound engineers — decibel monitoring, frequency analysis, pitch detection
✓ Emergency preparedness — SOS signal, flashlight, compass

⭐ WHY CHOOSE THIS APP?
• 100% FREE — all tools included, no hidden paywalls
• Works OFFLINE — most tools need no internet connection
• LIGHTWEIGHT — small app size, low battery usage
• PRIVACY-FIRST — all sensor data stays on your device
• ONE APP replaces: sound meter, spirit level, metal detector, compass, flashlight, strobe, and more

Sound meter. Spirit level. Metal detector. Compass. Decibel meter. Flashlight. Strobe. Bubble level. Noise meter. dB meter. Sensor tools. Phone toolbox. All-in-one tools.