Flutter challenge 123b is a free Android lifestyle application developed by CHRISTOPHERAZENDERz. This program offers users the ability to create dynamic animations with 123b tiles.

With Flutter challenge 123b, users can click or tap on a 123b tile to initiate the animation. Upon clicking, the tile will break at the point of contact, generating multiple breaking lines (the number of which can be adjusted in the settings). The tile will then transform into several smaller 123b pieces.

There are two types of animation available for the 123b pieces. In the first type, the pieces will simply slide to their new positions, forming a new 123b tile. In the second type, the pieces will undergo an explosion animation, followed by an implosion animation to shape the new 123b tile in its new position. The duration of the explosion and implosion animations can be adjusted in the settings.