NightWalk Depth Scanner vs Decibels

NightWalk transforms your iPhone into a powerful tool for exploring dark environments. Using the LiDAR sensor, the app creates real-time depth-based visuals, helping you understand the space around you—even in total darkness. Take clear photos and record videos of what the LiDAR sees, and save them right to your device. Switch between color palettes, including grayscale and enhanced contrast modes, to match your preferences or lighting conditions. Need to measure distance? Tap the Distance button to activate a center-target reticle that instantly displays how far an object is from you. This is perfect for navigating unfamiliar areas, inspecting spaces, or simply experimenting with LiDAR’s capabilities. Customize the app’s performance in the settings: Choose smoother, faster scanning, or prioritize visual quality for more detailed results. Please note: NightWalk operates within the effective LiDAR range of approximately 10 cm to 5 meters. Objects closer than 10 cm or farther than 5 meters may not be detected accurately. Whether you’re indoors, outdoors, or simply curious, NightWalk gives you a new way to experience the world around you.

Decibels is a sound level meter that remembers what you measured. Point it at the noise, press start, press stop — and the reading stays. Average (Leq), maximum, minimum, duration and the full level trace, saved automatically, every time. No account, no subscription, and nothing leaves your phone unless you send it. MEASURE • A-weighted (dBA) or unweighted, per IEC 61672 • Fast (125 ms) and Slow (1 s) time weighting • LCpeak for impulses — alarms, slams, machinery • Live level trace with a ten-second window • Calibration offset for matching a reference meter KEEP • Every measurement saved automatically • History with the full trace of each run • CSV export carrying the settings it was taken under Decibels stores your measurements on your device and nowhere else. It records no audio — only the level — and asks for no location, no account and no identifiers. A note on accuracy: a phone microphone is not a calibrated instrument. Decibels is honest about that. Use the calibration offset against a reference meter for absolute readings, and treat it as an excellent relative instrument otherwise.