Sound Meter & Level Tools

Turn your iPhone into a complete toolkit with 15+ professional tools — all free, no ads, no subscriptions.

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
• G-Force Meter — measure vehicle acceleration and impacts

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

SENSOR DASHBOARD
Monitor 10+ phone sensors in real-time:
Accelerometer • Gyroscope • Magnetometer • Barometer • GPS • Proximity • Light • Battery • Sound • Pitch

FLASHLIGHT & LIGHTING
• LED flashlight with instant toggle
• Strobe light (1–20 Hz) 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

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 and animations
• Share to TikTok, Instagram, and Snapchat

AUDIO ANALYSIS
• Beat detection for music-reactive lighting
• Pitch detection — identify musical notes
• Sound frequency analysis with FFT

WHO IS THIS FOR?
• Home improvement — hang pictures straight, find studs, check surfaces
• Construction & DIY — level measurements, metal detection, vibration
• Outdoor & hiking — compass, altitude, GPS coordinates
• Concerts & festivals — lighting effects, scrolling text, strobe
• Students — physics demonstrations, sensor exploration
• Sound engineers — decibel monitoring, pitch detection

WHY THIS APP?
• 100% FREE — every tool included, no paywalls
• Works OFFLINE — no internet needed for most tools
• LIGHTWEIGHT — under 35 MB, low battery usage
• PRIVATE — all sensor data stays on your device
• ONE APP replaces a dozen single-purpose tools