Hi. Thanks for using bosstech. To download apps on your Samsung galaxy z2 you do not use the google play store because the Samsung z2 is not an android smartphone but a tizen smart phone. Sending apps from android phones to your Samsung z2, the apps won't work on your z2. You need to create a Samsung account by going to settings then account and choose Samsung account. After creating your Samsung account go and open the tizen store app and download from there.