Microsoft has been trying to get more developers to release their apps for the Windows Phone platform, but there's also a problem with major app creators and publishers that don't bother to update them with new features or improvements for months. In a couple of cases, the apps haven't been updated for nearly a year. Microsoft recently revealed a new Developer's Code of Conduct for Windows 8.1 and Windows Phone apps that stated, among other things, that developers must stay active in the store. That's certainly not the case for these five popular free apps, which have seen numerous feature and bug fix updates for their iOS and Android counterparts over the past year. In fact, most of these apps have seen some update in the past month for those two platforms, and none have been updated later than early September. That is certainly not the case for their Windows Phone versions. Best VPN providers 2020: Learn about ExpressVPN, NordVPN & more

Hulu Plus While the folks at Netflix recently updated the Windows Phone version of their streaming video app, the team at Hulu doesn't seem to care about their Windows Phone port of Hulu Plus. The app has not been updated since April of 2014. Meanwhile, the iOS and Android versions have both been updated many times, mostly for bug fixes. Download Hulu Plus from the Windows Phone Store

eBay The hugely popular online auction site has also not updated its Windows Phone app since April for US users, although an update was launched for international users in June. Once again, a number of feature updates and improvements have been released for the iOS and Android versions since then. Download eBay from the Windows Phone Store