Structural Floor Vibration vs DB Sense

Structural Floor Vibration uses the built-in accelerometer to measure and record floor vibration. This app allows users to evaluate vibration levels and compare amplitudes with criteria published in AISC Design Guide 11: Vibration of Steel-Framed Structural Systems Due to Human Activity.

DB Sense turns your iPhone into a precision sound level meter trusted by musicians, engineers, parents, and everyday users across North America. Whether you're checking noise levels at a concert, monitoring your baby's sleep environment, protecting your hearing at work, or measuring room acoustics — DB Sense gives you fast, clear, accurate dB readings in real time. -> REAL-TIME MEASUREMENT See live sound levels update instantly on a beautiful analog gauge or large digital display. Min, Avg, Max, and Peak values always visible. -> HEARING SAFETY Color-coded zones and NIOSH/OSHA reference levels tell you exactly when noise becomes dangerous — before damage is done. -> SOUND TYPE DETECTION On-device AI recognizes 300+ sound types in real time. No internet connection needed. No data ever leaves your device. -> SPECTRUM ANALYZER Real-time FFT frequency visualizer across 64 bands. Switch between dBA, dBC, and dBZ frequency weighting. -> NOISE DOSIMETER Track your daily noise exposure vs. OSHA safe limits. Know when to step away before hearing damage occurs. -> SLEEP NOISE MONITOR Run overnight to log noise spikes while you sleep. See exactly what woke you — or what's been disturbing your rest. -> HISTORY & EXPORT Save every session with date, duration, and location. Export as CSV or PDF to share with doctors, employers, or clients. -> HOME SCREEN WIDGET See your last reading at a glance without opening the app. -> CALIBRATION Fine-tune readings for your specific device microphone with a simple offset adjustment. IMPORTANT DISCLAIMER DB Sense uses your device's built-in microphone to provide approximate sound level readings. Results may vary by device. For certified professional measurements, use calibrated hardware. All audio is processed on-device only — no audio is ever recorded, stored, or transmitted. SUBSCRIPTION DB Sense Pro unlocks full history, spectrum analyzer, dosimeter, sleep monitor, export, and more. • 1 Week — $1.99 (auto-renewing) • 1 Month — $4.99 (auto-renewing) • 12 Months — $24.99 (auto-renewing, best value) Free features always available — no subscription required to use the core dB meter. Payment charged to your Apple ID at purchase confirmation. Subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://sites.google.com/view/dbsense/home Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/