Apps like Ultrasound Barrier

Here are some great alternatives to Ultrasound Barrier by USE Engineering Corporation :
Mosquito Sound
Mosquito Sound
★3.8
Insect Sound FX Lite
Insect Sound FX Lite
★4.0
Mosquito: Sounds & Ringtones
Mosquito: Sounds & Ringtones
★3.4
Annoying Sounds
Annoying Sounds
★4.0
Real Animals Sound
Real Animals Sound
★4.5
Animals Soundboard
Animals Soundboard
★3.8
Trick Track - Prank Sounds
Trick Track - Prank Sounds
★4.3
Sound Signal Generator 2
Sound Signal Generator 2
★4.2
Sound Signal Generator
Sound Signal Generator
★4.4
Frequency Sound Generator
Frequency Sound Generator
★3.9
Frequency Sound Generator
Frequency Sound Generator
★4.7
UltraSound Detector
UltraSound Detector
★3.8
Frequency Generator (Sound)
Frequency Generator (Sound)
★3.6
Frequency Sound Generator
Frequency Sound Generator
★4.3
Tone Generator: Frequency & So
Tone Generator: Frequency & So
★3.8
Frequency Sound Generator
Frequency Sound Generator
★4.9