Free App: Shades: A Simple Puzzle Game [iOS]

Featured in Apple's "Best New Games".
A mesmerizing, calming, zen-like experience that quickly evolves into a devilishly challenging puzzler.
Meditation + Panic. It's a fantastic combo.
A very simple game that will challenge you to think very fast.
"Surprisingly difficult!" ~ The guys who made it.
Features:
- Simple rules
- Intuitive gameplay
- Difficult to master
- 3 modes of play. Easy. Medium. Hard.
- Beautiful, colorful, minimalist design.
- Sound design by ONBC
How to Play:
The gameplay is simple.
- Move the falling blocks into the best position to combine blocks and clear rows.
- Place 2 blocks of the same color on top of each other to combine them into a single block of a darker color.
- Create a row of blocks with same color to clear the row.
- Don't let your stack of blocks hit the top.
Super simple, surprisingly challenging.