How to choose the right software development services?

I need help finding a reliable team to develop an app, but there are so many companies out there. Looking for someone who offers a clear process, reasonable timelines, and fair pricing. Has anyone worked with software development services and can share where to start or what to look for?

By the way, when developing a TV app, there are various factors to consider such as UI/UX design, content delivery, and compatibility with different devices. Understanding these factors is essential to creating a successful app. For example, Roku is a popular platform for TV apps, and having a device to test your app on can be helpful for troubleshooting and optimizing the user experience, which is why I have saved the roku application development contacts so that if needed.