Cranberry Sauce contains more sugar and unnatural ingredients during the making of the cranberry sauce and canning of the cranberry sauce which makes it not as healthy as fresh cranberries.
But cranberry sauce is still good for you and does have some health benefits.
Even cranberry sauce that is canned contains vitamins including Vitamin C and other nutrients which can also help prevent cold and flu viruses if you eat enough of it.
Homemade cranberry sauce is much healthier than canned store bought commercially made cranberry sauce but eating even canned store bought cranberry sauce is healthy for you.
However canned cranberry sauce also contains a lot of sugar and high fructose corn syrup so you might gain a lot of weight when eating too much cranberry sauce.
If you want to eat a can of cranberry sauce everyday then your health should improve though.