Stuff It, We Snowball (App Store release) is available on the App Store for free, and ad-free, here. It evolved from the game jam version, which you can read about here.

In Stuff It, We Snowball, you race down a treacherous mountain, and picking up snow along the way. Each day features a new procedurally generated mountain to race down. Get enough stars to complete each day to bronze, silver, or gold.