We're sorry, but notes cannot be transferred between the iPhone/iPad (iOS) version and the Android version. The two versions use different backup systems: iCloud on iOS and Google Drive on Android.
If there are notes you really want to move, please share or copy the text from the iOS version and paste it into the Android version by hand.
* Premium Service purchases can't be carried over between operating systems either. See "Can I restore my purchase after switching from iPhone to Android?" for details.