As a convenience the Abraham's Light App is freely available for Android, Windows 10 (PC, Mobile and Hololens). or Chrome (App or Extension) at the appropriate App Store. For now Apple Apps are cost prohibitive (ie: developers fees/Mac Computer) but if there is enough interest I will see what I can do to add them in future ...be part of a growing contingent. (NOTE: You may have to turn off any VPN you have running if you wish to register or login.)