Impulse Noise Decibel Meter vs Builder Pro

Firearm Noise Testing | Sound Level Meter helps you monitor sound levels (dB) in real time. It’s designed for very loud environments such as workshops, concerts, and outdoor ranges, so you can make better hearing-safety decisions. The app uses your phone’s microphone to estimate sound pressure level and shows current, minimum, average, and maximum readings with clear visual feedback. Key features • Real-time decibel meter (dB) • Min / Avg / Max tracking • A-weighting (dBA) for everyday noise (closest to human hearing) • C-weighting (dBC) for very loud environments and peak levels • Linear mode for raw/technical readings (no filtering) • Sensitivity calibration (+/−) to compensate for device microphone differences • Clean, readable interface for quick checks Important notes • This app is not a certified or laboratory-grade sound level meter. Readings vary by device model, microphone hardware, phone case, distance, and environment. • For general information and personal awareness only. Not intended for legal, regulatory, medical, or workplace compliance measurements. • Very loud sounds can damage hearing quickly. Always use appropriate hearing protection in loud environments. Privacy • Microphone input is used only to calculate sound level. • We do not sell personal data.

Builder Pro is the construction calculator built for the jobsite. Get fast, accurate answers for stairs, rafters, joists, concrete, masonry, roofing, fencing and more — then save every calculation to a project and pick up right where you left off. Whether you're framing a wall, pouring a slab, cutting rafters, or laying block, Builder Pro does the math so you can get back to work. FREE - 19 PROFESSIONAL CALCULATORS • Stairs, rafters, joists, and beam load • Concrete volume, block & brick, and mortar • Roof area, shingles, and siding • Fence material, gates, and post spacing • Circle, triangle, square/rectangle, polygon, and arc • Pitch & angle converter • Imperial and metric units, with clear diagrams • Save calculations and organize them into projects • Full calculation history with auto-save BUILDER PRO - ONE-TIME PURCHASE, NO SUBSCRIPTION Pay once. Keep it forever. Two optional unlocks: • Lifetime — cloud sync across all your devices, unlimited projects, and data export/backup • Builder AI — everything in Lifetime, plus the AI Assistant: ask construction questions by text or voice, get pointed to the right calculator, and understand your results No subscriptions. No recurring charges. Ever. BUILT FOR THE TRADES Contractors, carpenters, framers, masons, roofers, concrete crews, and serious DIYers use Builder Pro to estimate materials, check dimensions, and cut waste on every job. TERMS OF USE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/