I agree it would take longer. I disagree that it would be 2^3 times longer (I don't actually believe you meant that, but it could be inferred from your comment)

I agree it would take longer. I disagree that it would be 2^3 times longer (I don't actually believe you meant that, but it could be inferred from your comment). The app would have to be written such that "is feature X available", not "is permission X available." Then, if I don't actually have all of the permissions I need for feature X, the whole feature isn't available, rather than trying to code for each permission. It is really no different than having a web app continue to work as JavaScript capabilities degrade from "Chrome" to "IE 6" to "NoScript".