Drawings - Videos (Android) Last updated Save as PDF Important Videos show the Procore iOS app, but also apply to the Procore Android app. Tip To browse and search all Procore training videos, visit our video library. Mark Up Drawings (Mobile) - Site Worker Mark Up Drawings (Mobile) - Subcontractor as Collaborator View Drawings (Mobile) - Site Worker View and Compare Drawings (Mobile) - Speciality Contractor View and Compare Drawings (Mobile) - Subcontractor as Collaborator