Abstract: An interactive planning system is provided to allow a user to create and manage plans in online, offline, and intermittent connectivity environments. In some embodiments, the interactive planning system comprises a mobile, web-based application with an in-browser database configured to allow the user to create and manage plans in an offline environment and synchronize the plan when online connectivity is restored. In some embodiments, the interactive planning system comprises a fitness planning system configured to allow users to create and manage physical fitness plans in online, offline, and intermittent connectivity environments; to provide instructors the ability to enter fitness plan attributes, detail focus areas and timeframe for fitness plans; to provide instructors the ability to highlight macro-level phases to inform plan analytics; and to provide an ability to share programs to groups.