While prioritizing features, you must keep in mind the end goal, i.e, achieving the product-market fit. Hence, always select the app features that are both what users desire and the market demands. Here are a couple of other things you should keep in mind:
⦁ Know the difference between what users want and need.
⦁ Always go for features that offer value to a large audience.
⦁ Analyze your competitors and try to fill the gap their app fails to fill.
⦁ Identify user problems and see how your app can solve them