I was eaten alive
I was out walking my dog in an area with tall grass to try it out. I tried all three Pitch frequencies and kept my phone in my pocket. I swear this just attracted them.
I could see and feel them all over me. I was only out there about ten minutes but now I have bites all over me. I just paid $.99 on an app that does the exact opposite of what I want it to do.
And when you have it running in the background, it drains my iPhones battery like a fiend.
Sliths about
Anti Mosquito - Sonic Repeller, v1.4.1