dB Meter vs TypeCalculator

Measure noise levels instantly - no setup needed. Point your iPhone at any sound source and see the decibel level in real time on a clean analog gauge. Perfect for concerts, restaurants, offices, nurseries, and noisy neighbors. FEATURES - Real-time dB sound level measurement - Live min / average / peak readout - LAeq and LCeq time-averaged readings (A and C weighting) - Low-frequency indicator (LCeq minus LAeq) for bass-heavy noise - Clean, easy-to-read analog display - On-device calibration for better accuracy - Works offline - no internet needed GO PRO - RTA spectrum analyzer - Peak hold - Full measurement history - Export & share readings (PDF, CSV, image) Built for musicians, contractors, teachers, and parents.

TypeCalc is a visual calculator canvas for Mac, iPad, and iPhone. Instead of losing your work in a calculator tape, you can place calculations on a flexible canvas and keep the relationships between numbers visible. CALCULATE VISUALLY Build calculations wherever they make sense. Arrange related ideas together, label important values, and keep each step visible as your worksheet develops. LINK VALUES Use a number or result from one calculation inside another. TypeCalc keeps linked values connected so dependent results update with the source. EXPLORE WHAT CHANGES Attach sliders to numeric values and graph changing results. Test ranges, compare scenarios, and understand how one input affects the rest of your work. KEEP YOUR CONTEXT Add labels to inputs and results so your worksheets remain understandable when you return to them. Create multiple canvases for estimates, planning, learning, and calculations you revisit often. WORK ACROSS APPLE DEVICES Use the compact keypad on iPhone, a touch-friendly canvas on iPad, and physical keyboard input on Mac. CloudKit keeps your canvases available through your own iCloud account. PRIVATE BY DESIGN TypeCalc includes no advertising, third-party analytics, or tracking SDKs. Worksheet data stays on your device or in the app's CloudKit container when you use iCloud features. TypeCalc is useful for everyday arithmetic, budgets, discounts, savings and loan scenarios, conversions, scientific calculations, and any problem where seeing the relationships between numbers matters.