Sergio Gudkov

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UltraSound Detector
Free
UltraSound Detector is the App that allows you to detect ultrasound (ultrasonic) acoustic signals above the user-defined frequency (above 18 KHz...
Android
InfraSound Detector
Free
InfraSound Detector is the App that allows you to detect infrasound (infrasonic) acoustic signals below the user-defined frequency (up to 30 Hz...
Android
Heart Rate Analyzer
Free
Introduction.
Android
Audio Analyzer
Free
The App turns your device into an active frequency response audio analyzer.
Android