I have both Ozrunways and Avplan at the moment.
I must say Avplan’s allowing to be run on 2 ipad for the basic subscription is a boon for me, compared to the Ozrunways 1 ipad and 1 iphone. I use an ipad mini in cockpit but use a full size ipad at home and find the iphone too small to comfortably look up weather and webcams at home.
Thus Avplan is significantly more generous for my use in this regard.