Seismometer ∞ vs Decibel Meter

Seismometer ∞ — earthquake detector, vibration meter, and seismograph in your pocket. Turn your iPhone into a precision seismometer and vibration meter. Detect tremors, monitor seismic waves, and visualize ground motion in real time. • Real-time seismograph visualization with precision charts • Track X, Y, Z axis vibration readings with detailed graphs • Monitor earthquake tremors and ground movement • Professional-grade sensitivity for reliable measurements • Clean, intuitive interface for easy data interpretation Perfect for earthquake awareness, physics experiments, scientific research, and education. Whether you're a researcher, student, or curious explorer, discover the hidden world of seismic activity. Privacy Policy: https://www.icloud.com/pages/0bcX7C5KVMC35FbMWk-FNfjWg Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Decibel Meter helps you understand the sound around you in real time. Open the app, allow microphone access and instantly see the current decibel level with min, average, max and peak readings. Use it at home, at work, outdoors, at events or anywhere you want a quick picture of the noise level. Key features: - Real-time SPL metering with dBA, dBC and dBZ frequency weighting - Fast and Slow time response for quick or steadier readings - Min, Avg/Leq, Max and Peak measurements - L10, L50 and L90 statistical noise levels - Live 30-second level chart - FFT spectrum analyzer with dominant frequency and peak hold - Noise alarm with adjustable threshold - Presets for Environment, Workplace, Concert and Sleep - Session recording with history, notes and charts - PDF, CSV and image sharing - Calibration offset for matching a reference meter - NIOSH-style hearing exposure guidance Use Decibel Meter to: - Check if a room is quiet enough for sleep, study or recording - Compare noise levels between offices, cafes, streets or appliances - Monitor loud environments such as workshops, traffic and concerts - Save measurement sessions for later review - Share sound level reports with others Subscription Pricing & Terms: Account Charge: Your Apple Account will be charged once you confirm your purchase. Account Settings: You can manage your subscriptions and disable auto-renewal in your Account Settings after the purchase. Auto-Renewal: Subscriptions will automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. Renewal Cost: The renewal cost will be charged to your account 24 hours before the end of the current period. Free Trial: The yearly plan includes a 3-day free trial. Any unused portion of the free trial period will be forfeited when you purchase a subscription. Cancel at least 24 hours before the trial ends to avoid being charged. Cancellation Policy: If you choose to cancel a subscription, it will remain active until the end of the period. Auto-renewal will be disabled, but no refunds will be provided for the current subscription. Lifetime: The Lifetime option is a one-time purchase that unlocks Premium forever — no subscription, no renewal. Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vRBoPRdt804Zl65f6ehxNdFCeHi-R_O6H1_ehyPX1cYZbIj3VQ_WAnD9QLMpw1zynh5UYQXnh0sl71L/pub