I do this. 90% of my users upgrade within 5 days of an update being released as a result. "Hey! You're using an outdated version of [APPX]. Click okay to upgra

I do this. 90% of my users upgrade within 5 days of an update being released as a result. "Hey! You're using an outdated version of [APPX]. Click okay to upgrade via the App Store, or Cancel to continue"