iStackUp app for iPhone and iPad

Stack to the top!
Once you start, you cant stop!

iStackUp is an retro arcade game that challenges you to stack blocks as high as possible. As the blocks move back and forth across the screen, you must line them up perfectly so they dont fall. Once you drop all the blocks, the game is over. The game starts slowing, but quickly increases in speed each time the top of the screen is reached.

iStackUps extremely addicting gameplay will keep you coming back for more: you know you want to beat that highscore! With Game Center leaderboard and achievement integration, you can compete to obtain (and sustain) the best score in the world (or just with friends).

iStackUp classic red theme can be changed by unlocking new colors. Each time you beat your highscore, you get closer to unlocking a new color!

Colors include:
red
orange
yellow
green
light blue
dark blue
purple
pink
black
white
STROBE!!!
RAINBOW!!!

Can you stack well enough to unlock both stobe and rainbow mode? Lets just find out!