Feels Engine puts your own photos on the home screen, the lock screen and the screen saver, and changes them on a rhythm you set.
I built it because I wanted to see my kids during the day without opening a gallery, and nothing on a stock phone rotates your own photos across both screens.
How it works
Make a group. Pick the photos yourself with the system photo picker, or describe what you want ("the kids at the beach", "our dog", "sunsets") and the phone finds matching photos in your library. Choose where the group shows: home, lock, both. Set the rhythm, from every 15 minutes to once a day, or at set times. Turn it on.
Your own photos on home, lock and screen saver. Nothing leaves the phone.