App discovery and evaluation is a perfect example of 21st Century Skills in action. The search for an app, the critical assessment of an app, the practical integration of an app into instruction and hopefully, the sharing out of that process through social media to pay it forward for the common good. To impede that process by trying to control it seems very 19th century to me.

Why Schools Should Budget For Mobile Apps, EdTech, Andrew Schwab

Because without apps, you are the proud owner of expensive plastic.