If you are the product owner brand, then I would suggest you to go for some professional assistance like a software testing company such as Accenture, Capgemini, BugRaptors and more . Since taking your product to market and making it a success needs you to deliver quality .
However, if you have a testing team in place to work on the application, then I would suggest you to use Selendroid, a dedicated testing tool to check for your android app. You can even try using Appium to run tests.
Besides, there are options like Kobiton and Robotium that you might like to explore. But I would personally suggest you to stick with Appium or Selendroid to run your tests.