Tono is a puzzle about tones. Every tube takes four units and all the pieces are steps of one color, a ladder from light to dark. Touch a tube, then touch another; if the top tones match, it pours. When every tube holds a single tone, the level is done.
Free to play. Works offline. No account.
Real screenshots, not mock-ups.
Tono is still in the workshop. This page will carry the store links the day it is out.