The app is simple to use; for it's user interface, it's a 5* product. You must understandably have earphones. The test is simple enough, just like the test at an ENT. Here's the problem - it is extraordinarily sensitive to sound. Its degree of sensitivity is so high that it borders insanity. In my room at the backend of the house, with no fan, no running electronics, and no noise, the system repeatedly indicated that I need to move to a quieter area. I had to sit in my car at night with the doors closed and the car off to take the test, and even then it periodically interrupted the test to tell me to move to a quieter area. I would then have to just sit there and wait for the system to realize there is no noise, then click dismiss, and continue the test. Unless you live 100 ft down in an underground bunker with 20 ft of noise canceling insulation, then this app is ridiculous. I don't recommend it at all.