Cubether Lead the cubes to solution by Michal Barszczewski $1.99

 Cubether Lead the cubes to solution comes from Michal Barszczewski.  I stumbled on his game on twitter: https://twitter.com/mandigondo  and was immediately intrigued.

 Cubether is a 'minimalist' game. This moniker has become fashionable among very good puzzle app designers.  Essentially: play the levels and discover how the pieces move.

The object is to get the green pieces to merge and then get home. Green can only travel up/down.
The blues pieces can only move horizontally.
The orange pieces can move up/down & right/left. 
The pink moves diagonally only.

The key thing is that pieces can swap. A green, which is above a pink, can swap down.

Cubether is smart, sophisticated and pretty hard.  

Michal: your game is a home run!

https://apps.apple.com/us/app/cubether/id1486743100
http://mandigondo.com/press/sheet.php?p=cubether

Other 'Minimalist' games
Shapecraft
"klocki"
"Hook"
oO
"PUSH"
Up Left Out
NABOKI
Dotstep Minimalist
turn,
maze cube
cohex
-look-
SiNKR
Quaddro 2