This game used to be great, but then....

but then, one day, the unending parade of banner ads started causing the game to become exceedingly laggy to the point that it begins to be unplayable-- iPad Air 2 128gb.

Also, why not change it up a bit?? The grid size/shape could be varied perhaps or they might incorporate some variation to the way matches are made (e.g. Involving colors, evens/odds, patterns, or arithmetic combinations). I think variations like these could be worked in without sacrificing the games elegance and simplicity.

Dcucura about Merged!