Android APK installing on a Blackberry Z10?

I'm not a big app user, but, the Android apps I have installed seem to work fine for the most part. Only two didn't work. One was a financial app that had a programing error that Android phones apparently overlook and my Z10 didn't. The other was a VPN program that needs something in the O/S to work properly. And from what I recall about that issue was that the upcoming 10.3 O/S should resolve it.