Building 5 apps using totally separate APIs for 5 different kinds of sandboxes, and then jumping through the arcane and hostile hoops of 5 different app stores

Building 5 apps using totally separate APIs for 5 different kinds of sandboxes, and then jumping through the arcane and hostile hoops of 5 different app stores (or 50, if you want to support all the linux distros), does not exactly count as “solved across platforms as easily as the web”