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Annulus Pro app for iPhone and iPad


4.2 ( 4672 ratings )
Games Puzzle Strategy
Developer: Hesive
0.99 USD
Current version: 1.0, last update: 7 years ago
First release : 31 Dec 2014
App size: 16.14 Mb

It is an addictive puzzle game inspired by the mathematical concept of annulus. Annulus (the Latin word for "little ring") is a ring-shaped object, especially a region bounded by two concentric circles.

Challenge is to combine similar rings/annuli and complete the circles.
- Swipe left, right, up or down to move all the rings/annuli in the same direction.
- Same-sized blue rings/annuli merge to form a larger green annulus.
- Same-sized green rings/annuli merge to form a larger blue annulus.
- Two max sized blue (or green) annuli complete the circle.

Play tactfully to hop through different levels and unlock donuts. Each donut reward requires certain number of blue/green circles.