Examples described herein include systems and methods for synchronizing applications that target different software development kits (“SDK”). The system can execute a bridge application that registers an implementation of a content provider class. This allows the bridge application to communicate with a first application targeting a first SDK. The bridge application can also register to send and receive implicit broadcasts. After the bridge application verifies the request, it can broadcast to a second cluster of applications registered with an operating system to receive implicit broadcasts. Similarly, the bridge application can receive implicit broadcasts and synchronize those requests with a first cluster of applications by using the implemented content provider methods.