First, fix your app, because the only review I see on the app page is a bad one saying it doesn't work properly. After you fix it, focus on marketing. This is a niche product for people interested in their YouTube channels. Make a YouTube account if you don't have one already and find people that are YouTube partners. I'm a YouTube partner. It used to be a program difficult to get accepted into, but now I believe it's open to everybody. You'll know if someone is a YouTube partner if they have a banner next to the subscribe button above their videos. Subscribe to these people and message them letting them know about your app. Don't give everyone the same cookie cutter message. Try and spark up a discussion and also let them know about the app. YouTube partners make money off their videos, so they will be very interested in your app. I know I am! You can also target people with up and coming videos, meaning videos that you think are about to get popular and possibly viral. Tell them why you think that their video has potential, and then let them know your app can help them track their video statistics.
Once you've done that, spend extra time messaging everyone else on YouTube that has a video uploaded on their account. Choose people that are more active on YouTube, not people that haven't logged on in 3 months. I'd try targeting the demographic of young teens that make Apple related videos (I was once one of them). They usually have iOS devices and will be very interested in not only buying your app, but maybe even reviewing it as well.
As long as you fix your bugs and have a perfectly working product, with a little bit of hard work (in terms of marketing), you could make much more than $30 a month.
You can catch me at alexgreene7@me.com if you want to talk further.