Official Affinity Photo (iPad) Tutorials in Tutorials (Serif and Customer Created Tutorials) Posted June 18, 2017 Rulers & Units of measure: iPad Pro; just purchased this version. It is in addition to the desktop for Mac already owned. Imported image; In the Mac desktop version, rulers & units of measure are available under 'View'. - Two coffees later and still cannot locate these settings on the iPad version. Help anyone? Thanks.