Decibel Meter: Sound & Level

A decibel meter and sound level meter in your pocket, plus a spirit level, metal detector, compass, flashlight and 15+ sensor tools, all in one free app.

Use it as a dB meter to check noise at home, at work or at a concert. The live display shows sound pressure level (SPL) in decibels with OSHA safety warnings, so this noise detector helps you see when a room is too loud. Use the bubble level as a simple level tool to hang pictures straight, and the metal detector as a stud finder app for walls.

🔧 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 a live 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)

• Live altitude calculator using barometer + GPS

• Tilt-compensated orientation for accurate readings

• Magnetometer with strength display (µT)

📊 SENSOR DASHBOARD

Monitor 10+ phone sensors live:

• Accelerometer (X, Y, Z motion)

• Gyroscope (rotation tracking)

• Magnetometer (magnetic 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 to 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: the flashlight pulses to music rhythm

• Color effects: solid, gradient, rainbow animation

• Share to TikTok, Instagram, and Snapchat

🎵 AUDIO ANALYSIS

• 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 a sound meter, spirit level, metal detector, compass, flashlight, strobe light and a phone toolbox of sensor tools

Whether you need a noise meter to check a loud room, a sound level meter for work, or a bubble level for a quick DIY job, it is all in one lightweight app.