I'm glad you're enjoying the game! And thank you for your kind words :)
To answer your questions:
1. No plans currently to add moaning, as it would require hiring a VA for each of the girls
2. I update weekly - Sundays for Patrons/Subs and Wednesdays for everyone else.
3. Your save data is automatically transferred between each version. If you're on PC, Linux or Mac just install the update to a fresh folder and play! If you're on Android just install the latest APK on top of the old one.
Hope that answered everything. If you have any more questions, or want clarification on anything, just let me know :)