Implementations for automated testing of application programs from an application program ecosystem are disclosed. As one example, a server system is disclosed that includes an application program management service residing at and executable by the server system. The application program management service may be configured to identify one or more networked components of a target application program of a plurality of application programs accessible by clients at an application program data store via a communication network. The application program management service may be configured to test the one or more networked components of the target application program, and output an indication of a result of the test of the target application program.