This is the first time I've ever written a review. Since the developers asked but I only am because I've just used this all for literally a minute or 2; and it does what it says. I expected it to be more complicated; and maybe be kinda fake or a gimmick. But it is quite clear already that it does what it says. I do have many suggestions/questions though. For example, down a short hallway into a bedroom with 2 people talking occasionally. Also having a tv on, makes it quite hard to hear people speaking; as you'd imagine. There are these equalizers on the app which I'm going to play with more, but maybe instead of frequencies; or in addition to, you could maybe label them with what their Benefit may be. Example being if you are wanting to hear 2 people talking and there is another noise; maybe there is a way to set the equalizers to better hear the people. I understand it's frequencies; and it goes from high to low. But with there being so many options and an infinite different number of possible settings......... I just find myself wishing that I better understood the entire concept etc. I'm sure many others would have this issue(I promise I'm not as stupid as I'm appearing!)and if there is anything you can do to help me figure out how to set it to best meet my needs at any given time I'd appreciate it. Bottom line is that.... THIS APP WORKS! It's free! Although I guess there's ads, I don't recall where they were, and as far as I know they don't effect using this app. So..... a big and genuine THANK YOU, to whomever made this. It's funny, I don't see anything even claiming to do the same thing! Very strange! Anyway, great job, and you should definitely look into anything you can do to make it even better! I'd suggest having it compatible with a microphone that could be purchased separately..... or even creating one specifically for these purposes! Imagine if apple had accessories like that and an app like this! They'd of course make billions on it. All under the assumption that it would be even better! Anyway, just something to think about! Thanks again!

I suggest that you add to your app a Bluetooth Finder, so people can use that to find the little earbuds that they drop and forget about. Also Wi-Fi locator Wi-Fi finder. And people on the Wi-Fi I’m connected to Wi-Fi receivers in the area. Also, are you capable? In general of even being able to create such a thing that find signals being sent continuously from one location and being able to identify as a characteristic of a camera ? I damaged my ears from extremely loud car stereo systems so I have tendinitis isn’t just minor so I’m trying to go with a good quality trustworthy app you can do better man go above and beyond. Well if your team is capable and smart enough and able to brainstorm into creation, the things that I suggested you cover every area. Keep your app with availability of purchase, but don’t sacrifice the quality of the free. Just add one simple little thing extra people will buy your app. Go to right away because I think it’s purchasing the app is better than the free app they already it’s a pre-programmed thought that we have as humans in the digital world. Thank you for your time. You can do better I Encourage you to be the best to you. Thank you for reading. I hope it wasn’t boring. Which idea that I listed for your team in app is impossible thank you I’m Nick.

It’s like a special ear that can detect a ultrasonic bug repeller sound waves that bugs don’t Like to hear at all and they run away so it’s very effective at what it does detecting those sounds so it’s very good so yea really like this app and I recommend this app to anybody like me that would like to listen to invisible ultrasound sound waves and would like to hear them warning it’s super doper loud u will need to only test it for a few seconds and then turn it off it’s super freaking loud :)

Not bad for a free app. Works beyond expectations and can hear at very long ranges. Yes there are banner ads but that isn't stopping the app from picking up my heart beat (through my thumb) I might add. Very sensitive but with the proper headphones (not ear buds) there will be no feedback (ringing) that others complain about. I recommend noise canceling headphones for a maximum feedback deterrent and be sure to allow access to microphone through the device for that silence issue some run against. Good luck my friends and play nice.