If you are looking for a way to promote your application you should go to android promotion, let the experts do the work for you.
Do you know there are multiple store to submit your Android app. Google play store is the most popular, but there are many others such as Amazon app store, which is good too. Here I’m listing down some of the popular app stores where you can submit your Android app. You don't have to build your app from scratch, just marketing graphics size to match to typical store.
Enter the world of applications and let android promotion help you with the application's facilities