Gemology is a free puzzle game developed by Doofah Software for Android 9.0 and above. It challenges players to match pairs of cubes with the same design to clear the board. With multiple game variations, players can choose to play for points or against the clock, with either a cube or sphere layout and free or fixed rotation.

The game also features Google Play leader boards, where players can compete for the top scores and best times in each game type, as well as a gem bonus score leader board. The addition of gems to the collection can help boost scores and earn achievements.

Gemology's colorful graphics and catchy soundtrack make for an addictive gameplay experience that keeps players coming back. With its fun and challenging gameplay, Gemology is a great puzzle game for players of all ages.