I used this app several times and while it masked the ringing in my ears while I was using it, my tinnitus was immediately worse and much more noticeable after I turned it off. This app does not help reduce tinnitus long term by selectively filtering out problem frequencies, it just creates random noise or sound beds that help you relax and tune it out while using it. It will not make your tinnitus better long-term. This app is a huge waste of money.