Sync Simple is a third person shoot em up where the player takes control of a spaceship travelling though a tunnel at high speed. The tunnel is full of Space Invaders type aliens that the player has to shoot down. When twenty four aliens have been shot down, the player progresses to the next level. Early on the aliens don't offer much resistance but in later levels they will get tougher and start to shoot back. The game has two types of collectibles, one that increases the fire power of the ship and another that lowers it. It's also lowered by getting hit until it's just a single shot weapon. While in this state the ship will explode upon contact with an enemy.
On mobile devices there are three different control options: tilting the phone, sliding across the screen or tapping virtual buttons. Shooting is done automatically.