*UPDATE* - This issue has now been fully resolved. WhatsApp, Flixster, Z-Theme and all other apps are now working for the Verizon BlackBerry Z10. If an app you come across is not working, it would be best to let the developer know as there is now options for them to specifically target Verizon BlackBerry Z10 devices through various developers tools and the BlackBerry vendor portal. There is no difference here between ATT with 10.0.10 and Verizon with 10.0.9 other than the version #. The app availability is the same.
Over the past few days there has been a lot of Verizon BlackBerry Z10 owners gathering in the CrackBerry Forums to share their experiences with the device. Overall, most people are loving the Z10 but there is one issue that needs to be mentioned specifically for those on Verizon.
As of right now, there is an issue with installing some apps due to the OS the device is running, which is currently 10.0.9.2743 (software v10.0.9.422) when most apps listed in BlackBerry World requires a minimum OS of 10.0.10. Is it the end of the world? Not really. But there's no denying the fact that it's insanely annoying to those who were looking to make use of WhatsApp, Flixtser, Z Theme and many others apps that are available to others.
Perhaps the worst part of it all is the fact that there is currently no workaround to advise folks of. Sideloading won't work because the apps will still look for the correct OS and when it doesn't find it installed, the sideload will fail. The light at the end of the tunnel though, so to speak, is that both BlackBerry and Verizon are aware of it and come next week, there should be some resolution on the matter. Until then, we'll just have to wait it out and keep checking for updates.