The topping! All are made with apples or another type of baked fruit filling but it's the topping that makes the difference. u003cbr/u003eCrisp: Topped with a combo of oats, flour, sugar and butter (or in this case oil).u003cbr/u003eCrumble: Similar to a crisp but doesn't use oats.u003cbr/u003eCobbler: Some type of dough such as biscuit batter.