Is there a difference between ground cinnamon and roasted ground cinnamon?

From experience don't use roasted cinnamon in homemade apple sauce.

Roasting brings out cinnamon’s spicy-sweet flavor. Add to muffins, apple pie and chocolate desserts. Also great in mole recipes and spice rubs for meats. Used in sweet and savory recipes.

Pretty well all the cinnamon you buy in north america is from one of the cheaper species of cinnamon trees. You know you have true cinnamon if it is lighter colored and costs four or five times as much as the regular stuff we get. Some say roasting the cinnamon releases more flavor, but I think by the time you get the cinnamon into your recipe it does not matter.

Roasted could possibly be more savory for barbecue, fish, rubs and etc.