We've received a few questions about transferring MyNBA2K19 progress between mobile devices and platforms.
Yes, you can transfer your progress and card library between devices. This applies to both upgrades (when you go from an iPhone 6 to an iPhone 7) and playing between devices with a completely different mobile OS. (such as switching from an iPad to an Android tablet).
Facebook Connect (Facebook's single sign-in service) will let you connect your MyNBA2K19 content across any compatible device. That includes phones/tablets connected to Google Play as well as iOS devices.
Game Center (Apple's social game network) will let you connect MyNBA2K19 content across any compatible iOS device.
Google Play will let you connect MyNBA2K19 content across any compatible Android device.