dB Meter Ultra turns your iPhone into a modern sound level meter for quick noise checks. The app measures levels in real time and combines a clear live display with analysis tools for everyday use, studio work, rehearsals, workshops, and mobile situations. Features: • real-time live level display • dB(A), dB(C), and unweighted dB • large VU meter • waveform display • history chart • RMS, peak, max hold, and session average • measurement duration and session log as a text file • peak alarm with vibration and screen flash • loudness comparison, e.g. conversation, traffic, or concert • calibration status shown directly in the display • adjustable calibration offset • reset for max, session, and measurement values • German/English language switching • clear redesigned main layout • improved setup with technical measurement explanation Ideal for quick loudness checks, soundchecks, audio use, rehearsals, technical environments, and mobile sound level measurement.