What is the difference between AgilePM Foundation and PRINCE2 Foundation?

The difference between AgilePM Foundation and PRINCE2 Foundation is that AgilePM focuses on managing projects in an Agile setting, whereas PRINCE2 is used for any project type, especially waterfall. Your choice depends on whether your projects are Agile, in which case select AgilePM, or waterfall, making PRINCE2 the right option.