App for 'Time Travel'

I saw this video quite a while ago

( https://youtu.be/HeSVHYy5s3g?si=THnkxqgi96Jlwq0f )

of magic, and the trick shown throughout a good portion of the video really surprised me. I know what the app is, but it seems pretty pricey to me. I'm dropping the link here in case anyone's interested. It's called 'Timeline' by Patrick Kun, and it's also available on iOS.

https://play.google.com/store/apps/details?id=com.patrickkun.timeline