What are the benefits of your app? Why is it better than your competitors? From what little you described it sounds like your competitors are more YouTube, Face

What are the benefits of your app? Why is it better than your competitors? From what little you described it sounds like your competitors are more YouTube, Facebook, Vimeo, and even Skype to some extent rather than Vine or Snapchat. Currently if I want to share a video with friends or family I use either Facebook or YouTube or a combination thereof. So why should I use your platform instead? You are right it is a very tough market to break into and you will need to have a key selling point that makes your solution more appealing than the existing ones. From there I might consider creating a landing page for your site outside the app store that highlights these benefits and then doing some testing on Facebook ads or even targeting ads on YouTube. An app like this needs to have a viral appeal that will draw your users in. Maybe create a very unique video that catches people attention and makes them want to download your app. Post it on Facebook and get your friends and family to start using it. Build some viral appeal from there.