I haven't tried it personally, but I believe some people have had success with pumpkin puree in place of applesauce. (healthfulpursuit.com)
Enjoy on toast, on oatmeal, on fresh fruit, use it to make your own condiments, in place of applesauce when baking, or use it as a sandwich spread on whole grain bread. (heathermcclees.com)
I also chose to sweeten this muffin recipe with a little stevia and some unsweetened applesauce instead of sugar, but you could also use pumpkin or banana in place of the applesauce if you like. (heathermcclees.com)