Application development and execution framework

An application repository is provided. The application repository comprises a first computer having a processor and a memory, a data store, a plurality of applications stored in the data store, and a billing apportionment module stored in the memory. Each application contains an instruction to invoke a run-time license tracking application programming interface (API), the plurality of applications comprising a first application. The billing apportionment module, when executed by the processor, receives a first run-time license tracking report generated by invocation of the run-time license tracking application programming interface by the first application executing on one of a second computer and a mobile electronic device, determines a first application usage fee to bill to an account associated with a user of the first application, bills the first application usage fee to the account associated with a user of the first application, determines a first usage fee share based in part on the first application usage fee and on the first run-time tracking report, and transfers the first usage fee share to an account associated with the first application.