The recommended size for app icons on the Google Play Store is 512 x 512 pixels. This size is recommended to ensure that the icon looks clear and legible on a variety of devices, including phones, tablets, and TVs.
It’s important to note that the Google Play Store also has specific guidelines for the design and style of app icons. These guidelines include recommendations for the minimum size of the icon’s visual elements, as well as the use of transparent backgrounds and the avoidance of certain design elements such as rounded corners and drop shadows.
To ensure that your app’s icon meets the Google Play Store’s guidelines and looks good on a variety of devices, it’s recommended to follow the recommended size and design guidelines.