2048 Stack by RedLine Games FREE

2048 Stack comes from RedLine Games. The object is to place the random cubic numbers at the bottom of the screen onto the 4 stacks.  Hopefully, you'll reach 2048.

I played this game once.  It's actually not bad.  But I was very annoyed that I could not undo a blatant mistake.
Also, there's no Leaderboard, which this game desperately needs.
https://apps.apple.com/us/app/2048-stack/id1493041086