
Suzy
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If this isn't working for u, either u don't have it turned all the way up to 22khz or your volume isn't all the way up. Or maybe your phone is just shyte. I live in Florida and sitting outside at night, not to mention a humid night, this really works. Update: I give 4 stars because of the occasional random mosquito that sometimes does a fly by, but mostly the ads have become extra long, they used to be short and then you could close them out, now u can't. That's very inconvenient and annoying.
145 people found this review helpful

Weedi Booper
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it says it plays frequencies from 17-20k... slider starts at 9 in the app, but it tries to force you to enable notifs. that's... weird. also? holy spam reviews. don't waste your time. Edit: funny, but apparently the developer somehow thought I was complaining about the frequency range. no. plenty of others do the same without being so intrusive.
8 people found this review helpful
Just4Fun Utilities
April 23, 2026
Thanks for your feedback! We're sorry it didn't work as expected.
High-frequency sounds may behave differently depending on the environment and device capabilities.
Thank you for sharing your experience!

Shelley Hicks
I'm here to tell you something! If you want to really be an announce, to being a practical joke, on a safe level that is. The sound got so high that I had to put paper plugs into my ears, and on top of that; I put a headset called Gumdrop gamer's gear over the ear plugs. Unbelievable that a Moto g play cell phone with an app that is totally mind blowing in creating sound, could produce such sound with clarity.. I would highly recommend that you invest in ear plugs!
63 people found this review helpful