Symptoms
Unable to install K2 Mobile app on Samsung Galaxy View 18.4
Android Version - Error Message from Play Store - Your device isn't compatible with this version.
Device Information
http://www.samsung.com/us/explore/galaxy-view-features-and-specs/
Diagnoses
K2 Mobile app has a requirement for "android.hardware.camera" aka rear facing camera. Without the rear camera, the app will not be allowed to be installed from the Play store.
Resolution
Issue has been logged to be fixed in future updates to the app.