Hiring a HockeyApp developer is beneficial for your business as they offer expertise in creating robust, scalable mobile applications. They can integrate HockeyApp, a platform for app distribution, crash reports, and analytics, into your app development process. This helps in streamlining the testing process, identifying bugs and crashes in real-time, and understanding user behavior which ultimately leads to a high-quality, user-friendly application. Furthermore, they can assist in continuous app improvement, making it easier to adapt to user needs and market trends. Their skills can significantly contribute to the efficiency and success of your app project.