The addition of so many features is never helpful especially when you are developing your app for the first time. Instead, it is very easy to add so many features and make it very difficult for users to operate.
Whereas adding a few and making them effective is the real challenge and that's what a good developer has to do. You can also browse to tvchannelpros.com/roku-tv/ to get more information about Roku app development.
Use Google Analytics
It is much needed to measure the app's performance so that you can make it better and improved. Google Analytics helps you deal with app crashes, daily active users, users' retention and engagement rate, etc. Once Google Analytics is active, it becomes easier to make the right decisions at the right time.
Test the app properly
Make sure you carry out a detailed beta testing of your app to identify potential errors so that you can deal with them accordingly. It is also quite helpful to test the app before sending it for beta testing. It helps to identify problems at the early stage and it becomes easier to suggest comparative solutions.
But it is not easy to develop a fully functional app without the assistance of any professional developer or a mobile app development company.