This is probably something really simple, so sorry if I'm being an idiot!
I started experimenting with PowerApps yesterday, and also downloaded the application from the Windows 10 store. I can open and run my test app from the Windows Store application but whenever I hit Edit it forces me into using the web browser version rather than editing within the Windows 10 application.
Am I missing a really obvious solution here? If so, maybe it's time I retire! 🙂