How can I prevent piracy of my Windows Phone 8.1 app?

Question

I'll be releasing a paid-for Windows Phone 8.1 app soon and I want to ensure that users can't simply share the app to other phones.

I've recently learned that it's easy to share my app on Android and iPhone, so now I have to implement copy protection into the app for each platform.

Is there anything build into Windows Phone 8.1 to prevent this? Do I need to build my own custom copy protection mechanism?

Answer 1

Windows Phone 8.1 is, at the moment, 100% safe from this point of view, application assemblies are all encrypted and can't be reverse engineered. You could in wp7.x and in 8.0 prior to gdr3 update (but only with a Samsung Ativ S, because of a bug in a Samsung diagnostic utility)