Ball Stack: color sort puzzle

A family member inspired me to create a puzzle game that is clean and focused on a good experience. The download is small, and installs fast. The interface is responsive. There are no ads or interruptions.

No hidden costs: No runtime access to device networks.
Excellent Privacy: No runtime access to device media.
Excellent Security: Single installation.
Excellent Battery Life: 9.5 hours playtime on a Galaxy Tab A8 10.5" Tablet.

### Feedback

* You have agency in this world; Let us know how we can improve the experience for you.
* Email ballstack@rufe.org