Cool, but fix the whistle – Army Knife 10-in-1 *NEW TOOL* Review

I like this app. It was worth the $0.99. The only thing that is disappointing is the whistle. The test tone works, which I believe is a recent fix, but the other tones do not. Please fix this. Thanks.
Review by demi69 on Army Knife 10-in-1 *NEW TOOL*.