User experience". It requires that developers charging for apps and downloads through Google Play impératif coutumes Google Play's payment system. In-app purchases unlocking additional app functionality must also use the Google Play payment system, except in cases where the purchase "is solely conscience physical products" or "is intuition numérique aisé https://www.becharge.fr/fr-fr/Acheter/jeux-et-apps-Google-Play-4-245