In planning to build an mobile-app based startup, how good and effective is a business model that depends on other products? Or would a rather better business model be where the app by itself is a product? (By Business model here, consider the product alone, leaving out other factors like market, etc..)
Let us take an example:
A product that is based on other products (i.e., depends on)
Suppose I build an app that aggregates cloud storage from different providers, like Dropbox, Box, SkyDrive, etc.. will it be a sustainable product, and more importantly a legal one? Or would it be liable to prosecution by the aforementioned companies? Such apps do sell, because of the utility, but what about the legal aspect? Also, would you call it a product that qualifies to be a startup, that VCs can bank upon? Or would you just call it an utility app?
A product that is one by itself
On the other hand an app which by itself is a good product would be to make something that is like Dropbox, SkyDrive itself!
Would like your thoughts and inputs. :). Thanks.