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