Apps like UltraSound Detector

Here are some great alternatives to UltraSound Detector by Sergio Gudkov :
Bat Recorder
Bat Recorder
★4.4
mouse ultrasound
mouse ultrasound
★3.2
Ultrasonic Emitter
Ultrasonic Emitter
★3.5
Echo Meter Touch Bat Detector
Echo Meter Touch Bat Detector
★4.1
Metal detector & Gold Finder
Metal detector & Gold Finder
★3.9
Ultrasonic Sound Waves
Ultrasonic Sound Waves
★4.0
Hidden devices detector
Hidden devices detector
★4.0
Ghost Detector Pro
Ghost Detector Pro
★3.6
Pulse Echo Sonar Meter
Pulse Echo Sonar Meter
★4.1
Mosquito Sound
Mosquito Sound
★3.8
Frequency Sound Generator
Frequency Sound Generator
★4.4
Hidden Devices Detector
Hidden Devices Detector
★4.8
Noise Detector, Sound Detector
Noise Detector, Sound Detector
★3.7
Sound Meter - Noise detector
Sound Meter - Noise detector
★4.4
Hidden Camera Devices Detector
Hidden Camera Devices Detector
★4.7
Radiation Detector- EMF Meter
Radiation Detector- EMF Meter
★3.3