Various systems, mediums, and methods herein describe mechanisms that enable client devices to transfer data between various sources and/or requesters. A smartphone system may receive one or more touch inputs from a graphical user interface. The smartphone system may determine a quantity requested and an identifier of the one or more requesters of the quantity. The smartphone system may determine one or more sources able to provide the requested quantity based on the identifier, where each source may be able to provide at least a portion of the quantity requested. The smartphone system may generate an indication of the one or more sources to display the indication on the graphical user interface.