The app works exactly as intended even if you can’t hear it
This app functions exactly as expected, it is absolutely great! The only issue is that I wish the tone buttons on the user interface were in order ie: 9k 10k 11k, etc not 9k 13k 16k, but this doesn’t detract from the app and is a fantastic way to mess with my family. When a lot of people say they can’t hear it, this is true. The app is working, but a lot of people can’t hear these sounds. It simply depends on your ears. Most people over 30 cannot hear anything played on this app and a lot of times people a born with ears that cannot register the sound, the app is working perfectly it is not the apps fault, it yours. Here is a nice video from one of the smartest guys on the internet, at 2:55 he explains how your ears get worse over time and it is harder to pick up these tones