External and Internal Apps
The distinction between external and internal apps is mainly one of distribution and access. External apps are disbributed by the app stores of the various platforms and are, in principle, accessible by anyone. Internal apps may only be used by Bayer employees on Bayer controlled devices and distributed through Bayer's own app store. As they are distributed on the Bayer enterprise app store they are also known as "enterprise" apps.
For internal apps Bayer currently supports the Kony / SAP SMP platform for development.