The App Preview tool helps you check how your app page will look like after ASO optimization. It will help you to get the most out of app graphics and increase Product Page views and the conversion rate.
Access it under the Keywords & ASO section in the left-hand navigation menu.
Preview and test icon, title, subtitle, video, promo-text, description — everything you see on the app page. Additionally you can check this all on different Apple devices: iPhone, Plus, X, SE and on the search page to make sure your efforts look good everywhere:
Make sure you check data in each country that your app supports.