声振水平尺

Sound Vibe Level helps you align your iPhone horizontally or vertically with live angle readings, sound and haptic feedback. Use the long edge of your phone against a surface and adjust slowly. Turn sound and vibration on or off separately, and calibrate each physical orientation in Settings. No app account is required. Motion readings and calibration stay on your device. In supported advertising markets, the first completed alignment of each session is free; later alignments may show an interstitial ad. An optional one-time purchase removes ads permanently. Restore Purchases is available in Settings. Results depend on your phone sensors, case and surface. This tool does not replace calibrated professional measuring equipment.