Decibel Meter vs HydroCalc

Understand the sound levels around you with a clear live meter, responsive graph, and session recording. FREE FEATURES • Live estimated sound-level readings • Current, minimum, average, and maximum values • Real-time history graph • Manual calibration offset • Recording playback PREMIUM FEATURES • Ad-free measuring • Advanced response-time options • Additional frequency modes • Automatic recording saves • Saved measurement history Decibel Meter uses your device microphone only while measuring. Phone microphone readings are estimates and are not a substitute for a calibrated professional sound-level meter or workplace safety equipment. Subscription pricing and trial availability are shown before purchase and may vary by region. Subscriptions renew automatically unless cancelled in your App Store account settings. Terms of Use: https://www.devnex.nl/terms Privacy Policy: https://www.devnex.nl/privacy-policy.html

HydroCalc: Manning Flow is a fast, reliable tool for calculating open channel and pipe flow using the Manning equation. Designed for engineers, designers, and students, HydroCalc makes it easy to evaluate hydraulic conditions in the field or at your desk—without spreadsheets or manual calculations. Key Features • Compute flow, velocity, depth, slope, and hydraulic radius • Supports both open channel and circular pipe conditions • Flexible input options—enter known values and calculate the rest • Clean, intuitive interface for quick results • Works entirely offline—no internet connection required Built for Practical Use HydroCalc is designed with real-world applications in mind, including: • Stormwater design • Drainage analysis • Pipe flow evaluation • Open channel hydraulics Whether you’re checking a quick calculation in the field or verifying results during design, HydroCalc provides a dependable solution in seconds.