If you download the Achievement app with a new iPhone, Achievement will still be connected to your Apple Health app on your old phone. In most cases, Apple Health data is not included in the backup to a new device. Please disconnect Apple Health from Achievement and reconnect through your new phone to resolve this issue. Please be sure to also check your iPhone Settings > Health > Achievement > turn on categories you would like to share. You can also open your Apple Health app directly and tap 'Sources' > Achievement > turn on categories If you would like to backup your Apple Health data to a new phone, you can click here for help. You can view Apple Support's article on how to transfer content from a previous iOS device to new one by clicking here.