I'm surprised that no-one here appears to have mentioned the option of monetizing such an app by in-app upgrades. In this case, adding videos (like Nike Trainin

I'm surprised that no-one here appears to have mentioned the option of monetizing such an app by in-app upgrades. In this case, adding videos (like Nike Training Club [1]) or other extra content would be an option. Isn't that the standard approach App Store for making money off free apps? [1] https://itunes.apple.com/en/app/nike-training-club/id301521403 https://itunes.apple.com/en/app/nike-training-club/id3015214...