You’re tempted by the big screens on offer from Android and Windows Phone handsets. Go on, admit it.

The good news is that you’re not the only one, with some iPhone owners deciding to jump ship and look for a handset with a more sizeable screen, bigger than the 3.5 and 4 inch ones Apple offers.

But what happens to your apps – the ones you bought and paid for – if you leave?

You can’t take them with you

If you’ve ever used both Macs and Windows PCs before, you know that the two operating systems are different, very different.

Natively, they won’t run applications made for the respective operating systems, so if you go out and buy a video game for Windows, it won’t install to a Mac without some form of operating system emulation like Parallels. Likewise, Apple’s iMovie won’t run on Windows.

That’s the difference between Windows and Mac OS.

iPhone and Android are different operating systems, so don't expect to run iPhone apps on Android, or Android apps on iPhone. It just doesn't work that way.

For mobile phones, there’s a similar level of disparity between the operating systems that are out there. Apple’s iPhone and Google’s Android are completely different, as are Microsoft’s smartphone edition of Windows, and Research In Motion’s waning BlackBerry OS.

They all look different, respond differently, and as you might well imagine take different apps.

So it’s worth mentioning that if you’re thinking of jumping ship from an iPhone – any iPhone – to a phone with a different operating system, you can’t bring your paid apps with you.

That includes devices under the following brands: Samsung, Sony, Nokia, Motorola, Huawei, ZTE, HTC, and any other manufacturer not associated with Apple. Which is pretty much every manufacturer.

Many of the free apps may well be available on the operating systems used by these devices, such as Twitter, Facebook, Dropbox, and Instagram, but any application you’ve paid for – games, graphics, music, writing – won’t have its license transferred to your new device.

So you’ll be leaving your applications behind, but don’t worry, because they’re going nowhere.

Different OS, different apps. Deal with it.

You still own your apps

Everything you buy on the Apple ecosystem, you own and can share between a maximum of five devices.