Cellular data access capabilities can be shared between mobile devices. Users of the mobile devices can be presented with options for selecting a set of polices for sharing cellular data access capabilities between the mobile devices and as a function of cellular data plan capacities. The set of policies can be stored in a memory of the mobile devices. Using a first application operating on a first one of the mobile devices and based upon the stored set of polices, a request can be transmitted to request cellular data access capabilities of a second one of the mobile devices. Using a second application operating on the second mobile device and based upon the stored set of polices, the first mobile device can be provided access to cellular data access capabilities of a second mobile devices.